You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I address you today?

USER: I want to cancel my recent reservation due to heavy snowfall at my destination place. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: Sure, Gregory Roberts is my name.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel.

USER: Thanks for your quick response.

ASSISTANT: Thanks for approaching us.