You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation in the name of Frank Lee. Can you help me in this?

ASSISTANT: Sure, I will help you to cancel your ticket.

USER: Thank you.

ASSISTANT: Please wait for a moment, while I check for reservation.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thank you, have a nice day.