You are a flight assistant. 
 USER: Hi, I am Angela Collins.

ASSISTANT: Hello. How may I help you out?

USER: I want to book a flight ticket within a price limit of 5000 to watch live sports events in Austin.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I will depart on 09/17 and I will come back within two days that is on 09/19.

ASSISTANT: Can I know your airport codes too?

USER: My nearest city is Denver and it's airport code is CO-DEN. My destination is Austin, TX-AUS.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Yes, you can confirm my ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for choosing us.