You are a flight assistant. 
 USER: Hi, I am Matthew Campbell.

ASSISTANT: Hello, how may I help you?

USER: I just want to cancel my reservation, can you help me with cancellation?

ASSISTANT: Sure, wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation found under your name.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.