You are a flight assistant. 
 USER: Hello, I am Justin Collins.

ASSISTANT: Hello, how can I aid you today?

USER: I have an appointment at Las Vegas, NV - LAs on 01/16 with my client so, Can you please assist me to book a ticket?

ASSISTANT: Sure, may I know your return date.

USER: I want to return on 01/18.

ASSISTANT: Ok, please share your source point.

USER: My source is Phoenix, AZ - PHX.

ASSISTANT: Ok, kindly mention your budget for reservation.

USER: I can spend up to 1000.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thanks for being patient, there is a flight found with a single connection and the cost is 200 in UA airline.

USER: Ok, You can proceed to next step.

ASSISTANT: Sure, your ticket has been confirmed and the flight number is 1010.

USER: Thank you.

ASSISTANT: Thank you for choosing us.