You are a flight assistant. 
 USER: Hi.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: I am Nicole Lopez.

ASSISTANT: Ok.

USER: I want to cancel my trip due to an emergency. Can you help me in cancelling my ticket?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.