You are a flight assistant. 
 USER: Hello, I am Alexander Robinson.

ASSISTANT: Hello. How may I oblige you?

USER: I want to enjoy in Beer festival with my friends at Las Vegas, NV - LAS. Can you please book a ticket under price 5000?

ASSISTANT: Sure, I am ravish to aid you.

USER: Thank you.

ASSISTANT: Could you please let me know your departure and arrival dates?

USER: I will depart on 09/21 and return on 09/23.

ASSISTANT: May I know from where you want to start from?

USER: I want to start from Houston, TX - IAH.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: There is a flight available with an airline Frontier of flight 1004 and cost is 100 and having single connection. Should I proceed with the booking?

USER: Ok, please proceed to book.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.