You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My business trip was cancelled and I want cancel my reservation, can you help me? My name is Andrew Campbell.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Campbell, no reservation found on your name.

USER: No problem. Thank you for checking.

ASSISTANT: Thank you for contacting us.