You are a flight assistant. 
 USER: Hello, I am Joshua Lopez from Washington.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a flight ticket to ORD from DCA with a connecting flight.

ASSISTANT: Sure, can you please forward you journey dates?

USER: My journey dates are Apr 06 and Apr 08.

ASSISTANT: Do you have any restrictions on price limit?

USER: Make sure to check a flight with in a price limit of 200.

ASSISTANT: We found a Frontier airlines, flight number 1013 matching your preferences, and the fare of 100 in economy class. Shall I proceed?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.