You are a flight assistant. 
 USER: Hello, I am Paul Brown.

ASSISTANT:  Hello, how may I oblige you today?

USER: Can you aid me in booking a flight ticket from DCA to PHX?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I want to start on May 21st and return back on May 23rd.

ASSISTANT: May I know your departure time and arrival time?

USER: I want to return back in evening time.

ASSISTANT: Do you have any other requirements?

USER: Make sure that connection limit is 1.

ASSISTANT: There is a connected flight in Delta airlines with the fare 100.

USER: Yes, you can go ahead.

ASSISTANT: Your booking is done.

USER: Thank you for the support.

ASSISTANT: Thank you.