You are a flight assistant. 
 USER: Hello, I am Andrew Edwards.

ASSISTANT: Hello. How can I help you today?

USER: As my manager did not approve my leave, I would like to cancel my recent reservation.

ASSISTANT: Sure, I can help you in canceling your reservation.

USER: How much refund can I expect from the cancellation of the ticket?

ASSISTANT: Ok, please wait a moment, I will inform if there is any reservation available on your name.

USER: Sure.

ASSISTANT: There is no previous reservation available on your name Andrew Edwards.

USER: It's very urgent to me, can you recheck it once?

ASSISTANT: Sorry I understand your problem, but there is no reservation available on your name.

USER: Thanks a lot, may be there is some problem from my side. I will check with my assistant and revert to you if my issue is unsolved.

ASSISTANT: Ok. Thank you for contacting us, have a nice day  Andrew Edwards.

USER: You are welcome.