You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Amy Adams.

ASSISTANT: How may I serve you today?

USER: I want to make some changes in my existing reservation, can you please help?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment I will check the reservation list.

USER: Sure.

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

USER: No worries, thank you.

ASSISTANT: Thank you for approaching us.