You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Karen Wright.

ASSISTANT: How can I be of your service?

USER:  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 help me in changing the reservation?

ASSISTANT: Sure, I will help you with that. Please wait, let me check you the reservation status.

USER: Ok.

ASSISTANT: We are sorry to say that, we did not find any reservation on your name to change it.

USER: No issues, thank you for the information.

ASSISTANT: Thanks for your presence.