You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: I need to cancel my reservation due to cancellation of my friend marriage. Can you help me in cancelling?

ASSISTANT: Ok, please provide your name so, that I can check your reservation and cancel it?

USER: Matthew Garcia is my name.

ASSISTANT: Sorry Garcia, no reservation has been found on your name.

USER: Ok, no issues.

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

USER: Thanks for your service.