You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am Jerry Edwards. I need to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, I will help you. Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting. I could not find any reservation on your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.