You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I need to cancel my recent ticket because my trip got cancelled. Can you please help me in cancelling the ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please hold on for a while to check your previous reservation.

USER: Ok, take your time.

ASSISTANT: Can I know your name to check your reservation?

USER: My name is Kimberly Phillips.

ASSISTANT: We regret that, there is no reservation with that name in our records.

USER: It's ok, I think the ticket is not confirmed before. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a great day.