You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how could I help you today?

USER: As its festival celebrations, please book a ticket from Denver, CO-DEN to Chicago, IL-ORD.

ASSISTANT: Sure, how much you can afford for a ticket?

USER: Ticket price limit is 1000.

ASSISTANT: Ok, when you planned to travel?

USER: Departure date is 05/15 and my return is by 05/17.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: I'm Richard Perez.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, we found a flight with 1003 number and the fare of a ticket is 100. Shall I proceed for booking?

USER: Please book a ticket with flight connections 1.

ASSISTANT: Ok, your ticket has been confirmed in Frontier airlines with a connection.

USER: Thanks.

ASSISTANT: Thank you for reaching us.