You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: Cynthia Hill here. Can you book a connecting flight to Washington?

ASSISTANT: Sure, can I have airport codes of your journey locations.

USER: My airport codes for boarding the flight are IAH to DCA. My price limit is less than 200.

ASSISTANT: Ok Cynthia Hill, please let me know your travel dates too.

USER: My travelling dates for journey are 06/20 to 06/22.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: I have found a flight with connection 1 and price 200 in AA airlines. Shall I proceed with booking?

USER: You can book the flight ticket.

ASSISTANT: Ok Cynthia Hill, your booking has done with flight number 1029.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.