You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: Benjamin Martin here. I want to travel from Phoenix to Washington for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My departure date is 06/24 and return date is 06/26.

ASSISTANT: May I know the airport codes please?

USER: My airport codes are from PHX to IAD.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, there is a flight 1016 in UA airline has the price 100. Can I proceed?

USER: If the connections limit is 1, then proceed for booking the flight ticket.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thanks for helping me.