You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: Please book a ticket from Philadelphia, PA-PHL to Denver, CO-DEN.

ASSISTANT: Sure, please share your planned trip dates?

USER: My travel dates are from 03/20 to 03/22.

ASSISTANT: Ok, can I have your name please?

USER: I am Kevin Lopez.

ASSISTANT: Ok, any other requirements to be met?

USER: Price limit 200. Connections limit 1.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, flight- 1001, airline- UA, price- 100 with connection-1 matches your requested details. Shall I proceed?

USER: Please proceed to book a ticket.

ASSISTANT: Ok, your ticket has been processed.

USER: Thanks.

ASSISTANT: Thank you for opting us.