You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to change my reservation as I am leaving for business meet, can you please help me out?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Angela Roberts here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Angela Roberts, there is no active reservation found under your name to do changes in that.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.