You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: My name is Gary Parker.

ASSISTANT: How may I support you now?

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, I am perky to help you.

USER: Thank you.

ASSISTANT: When are you planning to make your journey?

USER: I will depart on 06/16 and return on 06/18.

ASSISTANT: Can you please provide your take off airport code?

USER: My source airport is from Washington, DC - IAD.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting, we are pleased to inform you that, we have found an AA airline, flight number 1022, 1 stopover and the ticket fare is 200.

USER: Please reserve my seat.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for your helping hand.

ASSISTANT: Thank you for opting us. Have a safe flight.