You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need you to make few changes in my recent booking, please help me.

ASSISTANT: Sure, Let me know your name to check your reservation?

USER: My name is Christine Edwards.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.