You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Robert Hill.

ASSISTANT: How can I help you for the day?

USER: I would like to visit at Washington for meet my friends, can you help me to book a flight ticket from DTW to DCA?

ASSISTANT: Sure, I am here to help you with this. Can you please share your planned  travel dates ?

USER: I am travelling from May 18 to May 20.

ASSISTANT: How much you can afford for airfare? Do you have any other specifications?

USER: I can afford up to 1000.

ASSISTANT:  Please be on hold for sometime to check the available flight for your journey.

USER: Sure, I need a halt in between my journey.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed in economy class with the flight-1008.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.