You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Justin Perez. I made a earlier reservation to go for a trip with friends, due to an emergency meeting I need to change my reservation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a new reservation on your given name. Can you please share your new journey details?

USER: Ok, my journey dates are, 01/09 and 01/11. My airport codes are, LAS to LAX.

ASSISTANT: We found a flight in Delta airlines, flight number is 1013 with one connection and price is 200. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.