You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Can you please book a flight ticket from DCA o PHL?

ASSISTANT: Sure, we are happy to help you in booking. Please share your planned travelling dates to proceed further.

USER: Thank you. My travelling dates are Jan 03 and Jan 05.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I need a break in between the journey.

ASSISTANT: Can I know your name please?

USER: My name is Margaret Taylor.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by UA airlines with the flight number-1020. Shall I book the ticket?

USER: Please proceed with booking.

ASSISTANT: Your booking has been confirmed with the connecting flight.

USER: Thank you for the help.

ASSISTANT: Thank you for approaching us.