You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Jerry Phillips from Washington. I want to travel on these days that is on 05/12 and return on 05/14. Can you find a flight ticket for me?

ASSISTANT: Please can I know your airport codes?

USER: Ok, my source code is DCA and the destination code is PHL.

ASSISTANT: Ok, please wait a moment I will search for the best flight available for you.

USER: Ok, make sure that the connection limit 1.

ASSISTANT: I am sorry to say there are no flight available with 1 connection limit as per your travel dates there is flight available with 2 connection limits. Can I book the flight?

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Ok, thank you for choosing our agency.