You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to visit Flower festival at Houston, TX - IAH. Can you please book a ticket under price 500?

ASSISTANT: Sure, can I know your trip dates?

USER: My trip dates are 12/11 and 12/13.

ASSISTANT: Could you share your origin point?

USER: Sure, my nearest boarding airport is Las Vegas, NV - LAS.

ASSISTANT: May I know your name?

USER: Sure, I am Susan Hernandez.

ASSISTANT: We found a flight on southwest airline, flight number as 1024 with the fare of 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.