You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Margaret Taylor. Can you help me in cancelling my recent reservation, as my interview is postponed?

ASSISTANT: Ok, wait a moment I will check your reservation status.

USER: Sure.

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

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

ASSISTANT: Thanks for contacting us.