You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you for today?

USER: Could you please book a flight ticket?

ASSISTANT: Sure, could you please provide your name for further processing?

USER: OK, my name is Jessica wilson.

ASSISTANT: Ok Jessica, can you please provide your city names?

USER: yes, my source is TX-HOU to PA-PHL. And, my travelling dates are 11/24 to 11/26.

ASSISTANT: Ok, please wait a moment.

USER: OK,sure.

ASSISTANT: Thanks for waiting, there is a flight 1022 in airline AA with no connection and price is 100. Shall I proceed?

USER: OK,you can proceed. Please let me know your connection limit?

ASSISTANT: Sure, you have 0 connection.

USER: Sorry, my connection limit should be 1.

ASSISTANT: Sorry for the inconvenience, there are no flights with 1 connection.

USER: OK,thank you.

ASSISTANT: You are welcome. Have a nice day!.