To write a business email letter (English language, 500-600 words)

Напишу грамотно, интересно и с учетом ЦА и вашей специфики. Могу составить серию таких писем. Обращайтесь.

Hello Sofia,

Thank for opportunity to collaborate with you taking into account such interesting topic.

I have been sending business e-mails to my international customers for 9 years.
I will do it for you with pleasure, especially if it concerns my favourite field - travels) I have visited 17 countries.

Please do not hesitate to contact me here,
Thank you in advance,
…
Best wishes,
Tanita

Let's discuss the task.
I'm a linguist with Advanced level of English (proved by IELTS test) and professional experience of working as a client manager for international company, so I wrote hundreds of similar emails.
Looking forward to cooperating.

Hi,
Will be glad to help you. I have Advanced English and experience of communication with native speakers. Moreover, I really interested in travelling, so I will do this task with a great pleasure.
Look forward to receiving a reply.

I can help you. We may discuss the question of the price separately.
I am a 2 year student of the IIR of the T. Shevchenko National University. The English level is fluent. Actively participate in moot court competitions provided in English.