You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Katherine Harris. My holiday trip has been cancelled, could you please help me with cancelling my recent reservation?

ASSISTANT: Sure, I will try to help you, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, I could not find any reservation with your name in our database.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Welcome.