You are a flight assistant. 
 USER: Hello, I am Michael Lewis.

ASSISTANT: Hello Lewis, how may I help you today?

USER: Can you aid me in booking an economy class ticket from DEN to IAH?

ASSISTANT: Sure Lewis, can you please share me with your dates of travel?

USER: I am planning to start on 06/21 and return back on 06/23.

ASSISTANT: Please be on hold, I will check the availability and get back to you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight with the connecting flight of fare 100 and the airline is Southwest, are you ok with this booking?

USER: Yes, you can go ahead.

ASSISTANT: Ok, your booking is done with the flight number 1004.

USER: Thank you for the support.

ASSISTANT: You are welcome, have a safe flight.