You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Helen Young here.

ASSISTANT: How can I assist you?

USER: Reserve a flight ticket for me that is from DCA to IAD. My price limit is less than 500.

ASSISTANT: Sure, I will reserve a seat for you. Please provide me your planned journey dates.

USER: My travelling dates will be 11/30 to 12/02.. I need a connecting flight.

ASSISTANT: I found a connecting flight in JetBlue airlines with price 200. Shall I book the ticket for you?

USER: Yes, you can book the flight ticket. I am ok with the fare.

ASSISTANT: Your ticket is confirmed with flight 1013.

USER: Thank you.

ASSISTANT: Thank you for contacting us.