You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am planning to attend my business meeting in Las Vegas, so please help me in booking a flight ticket from TX - HOU.

ASSISTANT: Sure, can I know your destination point?

USER: My destination code is NV - LAS.

ASSISTANT: May I know your journey dates?

USER: I want to fly on 11/17 and return on 11/19.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found a flight on southwest airline, flight number as 1028 with the fare of 300. Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Betty Nelson.

ASSISTANT: Thank you for reaching us.

USER: Thank you.