You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, may I know your name?

USER: My name is Kimberly Mitchell.

ASSISTANT: Wait a minute.

USER: Ok.

ASSISTANT: Sorry, there was no reservation found on your name.

USER: Thanks.

ASSISTANT: Thank you for choosing us.