You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patrick Johnson.

ASSISTANT: How may I assist you now?

USER: I would like to cancel my reservation which is under my name. Can you please help me with that?

ASSISTANT: Patrick Johnson, please wait for a while till I check with your previous booking.

USER: Sure, take your time.

ASSISTANT: Sorry, no flight reservation is found by your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Than you for consulting us.

USER: You are welcome.