You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need your help in cancelling my recent reservation, can you help me in that?

ASSISTANT: Sure, I am willing to help you. May I know your name please?

USER: Sure, my name is Patrick Collins.

ASSISTANT: Ok, please stand by I will get back to you.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to say that we didn't find any reservation on your name.

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

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