You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm John White. Can you help me to book a ticket from NY - EWR to DC - DCA?

ASSISTANT: Could you please provide your travelling dates?

USER: Sure, my travel dates are 12/29 and 12/31.

ASSISTANT: Could you please your price limit?

USER: Sure, my price should not exceed 200 and also connection should be 1.

ASSISTANT: There is a flight ticket available with price 200 and flight number is 1010. Would you like to confirm the booking?

USER: Yes, proceed with my booking.

ASSISTANT: Your booking is confirmed. Thank you for contacting us.

USER: Ok, thank you.