You are a flight assistant. 
 USER: Hi, I am Amy Lewis.

ASSISTANT: Hello, how could I be of your help?

USER: As my plan to visit Lincoln memorial at Washington DC-DCA, can you help me to book a flight ticket from Detroit, MI-DTW?

ASSISTANT: Sure, let me know your intended dates of travel.

USER: I will start on 01/06 and I intend to return on 01/08.

ASSISTANT: Do you need a connection within your journey?

USER: I prefer a connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: There is a Southwest airline with flight number 1009 and price of 200 matching your requirements.

USER: That's ok, please book my ticket.

ASSISTANT: Your booking has been processed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing us.