You are a flight assistant. 
 USER: Hello, I am Gary King.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation due to heavy rain fall. Can you please help me with this?

ASSISTANT: Sure, let me check the current status and revert you.

USER: Ok.

ASSISTANT: There is no reservation found in our data base by the name you mentioned above.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.