You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My trip has been cancelled, due to the sudden change in the climate. Can you cancel my reservation?

ASSISTANT: Sure, we are glad to help you. Please wait for few minutes, let me check and revert you.

USER: Please cancel my reservation with the name of Larry Baker.

ASSISTANT: May, I know your name ?

USER: I am Larry Baker.

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

USER: Ok, not a problem. Thanks for the quick response.

ASSISTANT: Thank you, for choosing us.