You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my reservation as my appointment with my family doctor got postponed. Can you help me with it?

ASSISTANT: Sure, for that I need to know your name. Can you provide it?

USER: Mitchell Smith is my name.

ASSISTANT: Ok, please wait a moment I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any reservation by this name.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for contacting us, have a nice day.