You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: My name is Susan Smith.

ASSISTANT: Ok, please be on hold for some time.

USER: Sure, take your time.

ASSISTANT: Sorry we could not find any reservation on your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.