You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I succour you?

USER: I want to cancel my reservation, because I have exams on that dates, so me and my friends are decided to cancel this trip, can you help me in cancelling reservation?

ASSISTANT: Ok, may I know your name to check the status and revert you?

USER: I am Timothy Adams.

ASSISTANT: We found the reservation made on your name. Shall I proceed to cancel?

USER: Yes, proceed.

ASSISTANT: You will get only 85% of refund if yo cancel it. Is that okay with you?

USER: I understand.

ASSISTANT: Ok, now your reservation has been cancelled. Do you want to schedule an other flight?

USER: Not now.

ASSISTANT: Thank you for choosing our service.

USER: Thanks for your information.