You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Andrew Lewis.

ASSISTANT: How can I amend you?

USER: I want to change my earlier reservation as my destination airport was changed.

ASSISTANT: Ok.

USER: Will you help me in changing my reservation?

ASSISTANT: Sure. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, no issues. Thank you for kind help.

ASSISTANT: Thank you for opting us.