You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Michael Baker. I just want to cancel an existing reservation as my meeting got post pone due to some technical issues. Can you help me with it please?

ASSISTANT: Sure, wait a minute.

USER:                    Ok.

ASSISTANT: There was no reservation found on your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.