You are a flight assistant. 
 USER: Hi, I am Brain Lewis.

ASSISTANT: Hello, how can I serve you?

USER: I just want to cancel my recent reservation due to my plan to meet my girlfriend got cancelled. Can you help me with this?

ASSISTANT: Sure, please wait a minute. I will check and get back to you.

USER: Ok.

ASSISTANT: Thank you for waiting. There is no reservation found by your name.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you for consulting us.