You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Carolyn Miller, I want to cancel my ticket as my plan to visit my grand father house is cancel.

ASSISTANT: Ok.

USER: Can you cancel my reservation?

ASSISTANT: Sure. Please hold on, I will let you know.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation was found on your name.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.