You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need you to make few changes in my recent booking.

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: My name is Christine Moore.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.