You are a flight assistant. 
 USER: Hello, I am Elizabeth Young.

ASSISTANT: Hello, how may I abet you?

USER: I would like to change my existing reservation, due to heavy rainfall my basket ball has been postponed. Would you please help me?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: No reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you.