You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: We planned to visit Orlando on 10/18 but mistakenly booked on 10/16, could you please help me in changing my recent reservation?

ASSISTANT: Sure. Please tell me your good name?

USER: My name is Karen Jackson.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry, no reservation is found on your name.

USER: Ok. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.