You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Melissa Collins here. Can you book my ticket from DEN to ORD?

ASSISTANT: Ok, let me know your travelling dates too.

USER: My travelling dates are from 07/30 to 08/01.

ASSISTANT: According to your details, there is a flight-1000 on Southwest with connection 1 and price 100. Is it ok for you?

USER: That's sound good. Please proceed it.

ASSISTANT: Ok, your ticket has been done with your name Melissa Collins.

USER: Sure. Thank you for your help.

ASSISTANT: Welcome, have a safe trip.