You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: May I know your good name?

USER: My name is Angela Phillips.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting, I have gone through the reservation list twice but could not find any reservation active under your name.

USER: That's ok. Thanks for your time.

ASSISTANT: Thanks for reaching us.