You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me in that?

ASSISTANT: May I know your name please?

USER: Rachel Harris here.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Ok, no problem.

ASSISTANT: Thank you for your service.

USER: Thank you for checking.