You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation. Can you please help me with that?

ASSISTANT: Sure, may I know your good name?

USER: My name is Betty Nelson.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for visiting us, we hope see you again.