You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew Gonzalez.

ASSISTANT: How can I assist you?

USER: Can you help me for cancelling my recent reservation, because I am unable to travel at this moment?

ASSISTANT: Sure Gonzalez, please wait a moment.

USER: Ok, I will wait for your reply, but get back with my reservation status.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your quick response.