You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: As I am a scientist, I want to attend science festival with my students at Washington. Can you do the reservation?

ASSISTANT: Sure, do you have any limits on number of connections?

USER: I need break in my journey.

ASSISTANT: Please share your traveling dates.

USER: My journey dates are 12/15 and 12/17.

ASSISTANT: Could you please share codes of the airport, where you want to travel and catch the flight?

USER: My airport codes are JFK-DCA.

ASSISTANT: Is there class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please share your airlines preference.

USER: I am comfortable with normal cost flight.

ASSISTANT: May I know your name?

USER: Nicole Garcia here.

ASSISTANT: We found an United airlines with single connection and flight number is 1020. Shall I proceed for booking?

USER: Go ahead.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.