You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I serve you?

USER: Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out?

ASSISTANT: Sure, we are rapturous to help you.

USER: Thank you.

ASSISTANT: To check the reservation list, may I know your name?

USER: Yes, my name is Laura Gonzalez.

ASSISTANT: Thanks for providing your name, please wait a while.

USER: Ok.

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

USER: No problem, thank you for the information.

ASSISTANT: Thanks for your approach. Have a nice day.