You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you help me in booking my flight ticket from DCA?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates will be May 21st and May 23rd.

ASSISTANT: May I know your destination airport code?

USER: My destination point is DTW.

ASSISTANT: Do you have connection limit?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name?

USER: I am Donna Adams.

ASSISTANT: Here is a connecting in AA airlines, can I proceed with it?

USER: You can proceed.

ASSISTANT: Your ticket has been booked with 1020 flight in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.