You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I have to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Thank you. Myself Robert Gonzalez.

ASSISTANT: Please allow me a moment.

USER: Sure, take your time.

ASSISTANT: There is no reservation found under your name in our data base.

USER: That's ok, I will check my mail once again. Anyway, thank you for your time.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.