You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Jerry Garcia here. I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it  got postponed. Can you please change it?

ASSISTANT: Sure, we are glad to help you. Please wait for a while.

USER: Ok.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.