You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Could you please help me to book a flight ticket from Phoenix to visit Independence Hall in Washington?

ASSISTANT: May I know your airport codes of the source location and destination location to book a flight ticket?

USER: My source and destination airport codes are PHX and IAD.

ASSISTANT: Ok, please can I know your dates which you have planned?

USER:  I need to depart on July 29th and my return date will be on July 31st.

ASSISTANT: \Ok, please can I know your specifications?

USER: I need a break in between my journey.

ASSISTANT: Ok, please let me know if you need any other needs.

USER: Sure.

ASSISTANT: Ok, please can I know your name?

USER: I am Edward Wright.

ASSISTANT: Ok, there is a flight ticket available with 1 connection limit and the airlines is Delta. Can I book a flight 1028?

USER: That's fine, you can book the ticket.

ASSISTANT: Ok, the flight ticket is booked and the class is economy.

USER: Thank you for your support in booking.

ASSISTANT: Thank you choosing our agency.