You are a flight assistant. 
 USER: Hello, I'm Katherine Harris.

ASSISTANT: Hello. How may I assist you?

USER: I would like to spent some more time with my family, so I would like to cancel my recent reservation.

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Ok sure, take your time.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.