You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In what way, may I aid you now?

USER: As I am a C.B.I office, I have planned to go to Boston for a special case, but due to emergency I would like to cancel my reservation. Can you help me with that?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: For cancellation of your reservation, let me know your name please.

USER: I am Rebecca Williams.

ASSISTANT: Give a minute.

USER: Ok.

ASSISTANT: We found a reservation on your name, and the reservation got cancelled.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.