You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may i serve you?

USER: I am Barbara Johnson. I need to book a ticket from DEN to ORD to meet my wife and parents. Could you please help me in doing that?

ASSISTANT: Sure, may I know when do you want to travel?

USER: My travelling dates are 02/23 and return on 02/25.

ASSISTANT: Do you need a flag stop in between?

USER: Yes, I need a stopover in between the journey.

ASSISTANT: Thanks for sharing your credentials. There are no flights on your requested dates.

USER: Fine, thank you for the information provided.

ASSISTANT: Thank you for approaching us.