You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: My name is Donna Gonzalez from Denver and I want to book the flight ticket from DEN to ORD. Can you please help me in booking the ticket?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travel dates are 03/29 and 03/31.

ASSISTANT: There is a flight with connection 1 and price 300, can I proceed?

USER: I can afford 200 only.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Ok, thank you for the help.

ASSISTANT: Thank you for reaching us.