You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to cancel my recent reservation because my trip dates are got postponed, can you help me?

ASSISTANT: Sure, may I know your name to check your reservation from our database?

USER: I am Patrick Perez.

ASSISTANT: We found your reservation, please wait let me cancel your reservation.

USER: Sure.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you.