You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patrick Jackson.

ASSISTANT: How may I assist you?

USER: Can you help me in cancelling my reservation, as my project is extended?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for your time, there is no reservation found under your name to cancel it.

USER: That's ok, thank you for checking.

ASSISTANT: Ok, thanks for contacting us.