You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: Earlier I made a reservation with the name of Amanda Edwards, unfortunately meeting got postponed. Can you please change my existing reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry, we found no reservation on your given name.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for reaching us.