You are a flight assistant. 
 USER: Hello, I am Amy Williams.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket under price 500. Can you help me?

ASSISTANT: Sure, can you please share your airport codes?

USER: Mine is a round trip from Denver, CO - DEN.

ASSISTANT: May I know your journey dates please?

USER: I would start on 09/26 and return on 09/28.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 connection.

ASSISTANT: We found a flight with Southwest airlines, flight number is 1011 with one connection and price is 100.

USER: Ok, please book my ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thanks for choosing us.