You are a flight assistant. 
 USER: Hello. I am Robert Scott.

ASSISTANT: Hello, how may I support you?

USER:  I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington. Can you please help me in booking?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are from 09/10 to 09/12.

ASSISTANT: Help me with the airport codes?

USER: My airport codes are from DTW to DCA.

ASSISTANT: I found a flight in an airline Southwest of number 1001. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your flight ticket is booked with a price of 200. Thank you for opting us.

USER: Thank you.