You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

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

ASSISTANT:  Sure, may I know your good name?

USER: My name is Sandra Baker.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Thanks.

ASSISTANT: Thank you for choosing us.