You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to travel from DEN to ORD, help me in booking a flight?

ASSISTANT: Sure, may I know your dates of travel?

USER: My travelling dates are Oct 11 to 13.

ASSISTANT: Do you need any stopover in between your journey?

USER: I prefer single connection flight.

ASSISTANT: Is there any other specifications?

USER: I will be back on afternoon flight.

ASSISTANT: May I know your name?

USER: I am Virginia Parker.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.