You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Gregory Martin, I want to cancel my ticket as my trip to Austin is cancelled due to bad weather at destination. Can you cancel my ticket?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: There is no reservation on your name.

USER: Ok, thank you for the details.

ASSISTANT: Thank you so much.