You are a flight assistant. 
 USER: Hello. My name is Larry Clark.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to attend 30th birthday of my close friend at Philadelphia. Can you help me, To book a ticket from TX - DFW to PA - PHL?

ASSISTANT: Sure, may I know your price limit?

USER: My price limit is 500. My connections limit has to be 1.

ASSISTANT: May I know your journey dates?

USER: My travel dates are from 01/06 to 01/08.

ASSISTANT: Ok, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Southwest airline, flight number: 1002, price: 100 with one connection.

USER: Please go ahead and book the ticket.

ASSISTANT: Ok, your flight ticket has been confirmed.

USER: Thank you, For helping me to book a ticket.

ASSISTANT: Thanks for choosing us.