Как закончить ответ в части Writing?
Полезные фразы в конце письма
FORMAL
Thank you very much for your attention.
I hope the situation will be resolved soon.
I look forward to hearing from you.
Thank you very much for your cooperation.
If you require any further information, please do not hesitate to contact me.
INFORMAL
Hope to hear from you very soon.
Keep in touch!
If you need to know anything else, just get in touch with me as soon as you can.
Thanks a lot for your help and I hope to hear from you soon.