You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I be your helping hand?

USER: I made a reservation earlier to attend client meeting but unfortunately the meeting got delayed due to some issues.

ASSISTANT: Ok.

USER: Can you please help me in changing my reservation?

ASSISTANT: Sure. To check your earlier reservation, I need your name.

USER: My name is Michelle Miller.

ASSISTANT: Please wait for a while I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for your patience, I am here to inform you that there is no reservation found with your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for approaching us.