You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to make few changes in my reservation, I made few weeks ago. Please help me in changing my reservation.

ASSISTANT: Sure, I will help you with that. May I know your name for checking your previous reservation status?

USER: My name is Raymond Moore.

ASSISTANT: Ok, just give me a moment.

USER: Ok.

ASSISTANT: No previous reservation found on your name Raymond Moore.

USER: That's fine, no issues.Thank you for checking my reservation.

ASSISTANT: Do you want to know any thing else from us?

USER: No, thank you for assisting me.

ASSISTANT: Thank you for contacting us, have a good day.

USER: You are welcome.