You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Edward Thomas.

ASSISTANT: How may I guide you today?

USER: I am planning to attend live music concert at Houston, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you on that. Could you please provide your nearest airport codes for booking?

USER: Sure, my origin airport code is ORD and the destination airport code is HOU.

ASSISTANT: Ok, may I know your preferable dates that you want to travel?

USER: yes, I would like to take off on 03/21 and return back on 03/23.

ASSISTANT: Please hold on a moment to check the availability of flights and I will revert you back.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: Sure, I will check for that. According to your information, flight number 1005 from Southwest airlines with 1 connection is available for you. Shall I proceed with this?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok, your reservation is done successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a safe journey.

USER: You are welcome.