You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I  help you?

USER: I am Robert Nelson. I need to book a flight ticket from DCA to ORD, Can you please help me for booking?

ASSISTANT: Your travelling dates please?

USER: I would like to travel on 01/02 to return on 01/04.

ASSISTANT: There is a flight with single connection, can I proceed for booking in 1011 flight?

USER: Ok, proceed for booking.

ASSISTANT: Your booking is done in Spirit airlines.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.