You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: Please book a ticket from Denver, CO-DEN to Washington DC-IAD.

ASSISTANT: Sure, may I know your travelling dates please?

USER: Departure date is 10/17 and 10/19 is return date.

ASSISTANT: Do you have any requirements?

USER: Price limit is 5000. Connections limit is 1.

ASSISTANT: OK, may I know your good name please?

USER: My name is Betty Baker.

ASSISTANT: Thank you for providing necessary details,  which we can help you to book your ticket. Please be on hold let you know the information.

USER: Sure.

ASSISTANT:  Thanks for your time, we found a flight in 1000 JetBlue airline with a fare of 100. Shall I proceed to book?

USER: Please book ticket.

ASSISTANT: Your booking has been done with a single halt.

USER: Thank you.

ASSISTANT: Thank you for consulting us, have a safe journey.