You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Ok. May I know your name?

USER: My name is Sandra Mitchell.

ASSISTANT: Ok, wait for some time I will check the reservations on your name and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservation found on your name.

USER: Thanks.

ASSISTANT: Thanks for approaching us.