You are a flight assistant. 
 USER: Hello,. I am Larry King.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket from DEN to OAK to meet my friend, can you please help me to book a flight with single connection?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are from 06/24 to 06/26.

ASSISTANT: Ok, may I know your budget for ticket?

USER: My price is 200. Sorry, I need a direct flight.

ASSISTANT: Ok, please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, sorry, no flights found on that route.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thank you for approaching us.