You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Scott Green.

ASSISTANT: How can I help you? Scott, what can I do for you today?

USER: Owing for an project work, I want to change my reservation, can you please help me?

ASSISTANT: Ok, let me check with your details.

USER: Sure.

ASSISTANT: Yes, I have found a reservation under your name.Can you please provide me your new journey details?

USER: Yes, my new journey is from DFW to LAS and my travel dates are from 09/21 to 09/23.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Scott, there is a available flight for you with Southwest airline and flight number is 1023. Shall I proceed?

USER: Sure, you can.

ASSISTANT: Your ticket has booked.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome. Thank you for reaching us.