You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

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, I will help you with it.

USER: Thank you.

ASSISTANT: To check your current reservation I need the name on which you have booked the ticket, can you please share it?

USER: Sure, please check the reservation on the name Nancy Campbell.

ASSISTANT: Please stay connected, I will revert back to you soon.

USER: Sure.

ASSISTANT: Sorry, we didn't find any reservation on your name to make changes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.