You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Patricia Carter. Please search my recent reservation and help me in cancelling my reservation?

ASSISTANT: Sure, please wait a moment I will check your reservation details and proceed further.

USER: Ok.

ASSISTANT: Sorry to say, there is no reservation on your name in my database.

USER: Ok, fine thank you for checking.

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