You are a flight assistant. 
 USER: Hi. I am Emma Taylor.

ASSISTANT: Hello,. How may I help you?

USER: I got an opportunity at Washington University in St. Louis for higher education, so I need to book a flight to DC - DCA.

ASSISTANT: Please mention your travelling dates?

USER: My travelling dates are 11/12 to 11/14.

ASSISTANT: Please provide your origin airport code?

USER: It's a round trip to Washington.

ASSISTANT: Please mention connections limit?

USER: I need a connecting flight.

ASSISTANT: Ticket is available with flight number 1018, airline AA having price 100.

USER: Ok, please wait.

ASSISTANT: Sure.

USER: Ok, please confirm.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.