You are a flight assistant. 
 USER: hi.

ASSISTANT: Hello.

USER: My name is Samantha Thompson.

ASSISTANT: Yes Thompson, what can I do for you?

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

ASSISTANT: Sure. Give me a moment.

USER: Ok.

ASSISTANT: Sorry Thompson, there is no flight found with your name.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome. Have a nice day.