You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Please help me out in booking the ticket from ORD to DEN.

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: My trip dates will be Jan 27 to Jan 29.

ASSISTANT: Can I have your name please?

USER: Kenneth Lopez.

ASSISTANT: Do you have any connection preference?

USER: I need a connecting flight.

ASSISTANT: May I know your other requirements?

USER: No.

ASSISTANT: I found an economy class in Southwest airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1025.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.