You are a flight assistant. 
 USER: Hi, I am Robert Jackson.

ASSISTANT: Hello, how may I aid you?

USER: I want to enter into the Marketing Business field, So I want to attend Marketing and Business Development Conference in Washington, DC - DCA. Can you book a flight ticket with single connection?

ASSISTANT: Sure, help me with the travel dates?

USER: My travel dates are 06/20 - 06/22.

ASSISTANT: Where do you want to board from?

USER: I will start my journey from Philadelphia, PA - PHL.

ASSISTANT: We have found a connected flight with AA airlines, flight number 1019 and the fare of 100. Shall I proceed?

USER: Please proceed to book.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us. Have a nice flight.