You are a flight assistant. 
 USER: Hi, I am Rebecca Walker.

ASSISTANT: Hello, how may I assist you?

USER: Due to heavy rainfall my Volleyball match got postponed, can you please cancel my reservation?

ASSISTANT: Sure, can you please wait for a while.

USER: Ok.

ASSISTANT: We found a reservation on your name. Shall I proceed with cancelling?

USER: Sure, please cancel my reservation.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for cancelling my reservation.

ASSISTANT: Thank you for opting us, have a good day.