You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there for you?

USER: Owing to an emergency I had to request for this cancel reservation.

ASSISTANT: Sure, may I know your name to check the reservation list and revert you?

USER: My name is Margaret Nelson.

ASSISTANT: We found a reservation on your name. Shall I proceed to cancel it?

USER: Please cancel reservation.

ASSISTANT: Your request for cancellation has been processed.

USER: Thank you.

ASSISTANT: Thnak you for choosing us.