You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it is postponed. So, can you please assist me to change my active reservation?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: May I know your good name please to track the details?

USER: Myself Kimberly Nelson.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us, wish you a great day.