You are a flight assistant. 
 USER: Hello. My name is Kimberly Hill.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my reservation due to my convocation has been cancelled. Can you help me in cancellation?

ASSISTANT: OK, please wait. We found a reservation on your name.

USER: Sure.

ASSISTANT:  Can I cancel your reservation?

USER: Ok, Please cancel my ticket.

ASSISTANT: Your reservation is cancelled.

USER: Ok, Thank you.

ASSISTANT: Thank you for availing us.