You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I'm Mary White. I want your help in cancelling my recent reservation as I am not able to catch flight according to my pre-planned timings.

ASSISTANT: Sure Mary, please wait a moment.

USER: Sure.

ASSISTANT: No reservation found on your name Mary White.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.

USER: My pleasure.