You are a flight assistant. 
 USER: Hi. I am Michael Jackson.

ASSISTANT: Hello, how may I serve you today?

USER:  I make 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 for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for reaching us, we hope see you again.