You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Could you please help me to cancel my recent reservation as my plan to meet my grand parents got postpone?

ASSISTANT: Sure, please wait for a minute. May I know your name to proceed further?

USER: Sure, Gregory Mitchell is my name.

ASSISTANT: Sorry, I could not find a flight with your name in our database.

USER: No problem, thank you for the information.

ASSISTANT: My pleasure.