You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I would like to amend my recent reservation, can you help me in that?

ASSISTANT: Sure, I will help you. Please provide me the name on whose reservation has been done.

USER: Sure, myself Jessica Smith.

ASSISTANT: Please stay connected.

USER: Sure.

ASSISTANT: Sorry, there is no reservation existing on your name.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, have a nice day.