You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you today?

USER: I am Benjamin white, I want to cancel my ticket as my plan to visit my friend is postponed. Can you help me with cancellation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

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

USER: Thanks for the information.

ASSISTANT: Thanks for availing us.