You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I met with an accident due to which I would like to cancel my reservation. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is Joseph Brown.

ASSISTANT: Joseph, please wait a moment.

USER: Ok.

ASSISTANT: Sorry for inconvenience, there is no reservation found under your name.

USER: That's fine. Thank you for your information.

ASSISTANT: Welcome. Thank you for contacting us.