You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I guide you?

USER: I have to go Houston to meet my friends over there so please help me with flight ticket booking from Washington.

ASSISTANT: Sure, I can help you with the ticket booking. May I know your travel dates please?

USER: Thank you. I have planned my travel dates as Sept 15 and Sept 17.

ASSISTANT: Ok, may I know your selected airports of your desired locations?

USER: Sure, I would like to travel from DCA to IAH as these  are very much near to my travelling locations.

ASSISTANT: Ok, please let me know your preference regarding the number of connections in between your journey.

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: Ok, which class do you mostly prefer?

USER: I am ok with any class.

ASSISTANT: Ok, on which name do you want me to book the ticket?

USER: Please go with my name Mark Jones.

ASSISTANT: Ok, do you have any particular timings?

USER: I am ok with any timings so you can go with available flight.

ASSISTANT: There is a flight in an American Airlines which is matching to your requirement about the connection limit and the ticket fare is 100 in an economy class. Would you like me to book the ticket?

USER: That is fine, please proceed with booking.

ASSISTANT: I have reserved your ticket with the flight-1021 which departs in the morning time and returns in the afternoon time.

USER: Thank you for your help.

ASSISTANT: Have a nice journey. Thank you for opting us.

USER: Most welcome.