You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: My name is Jonathan Jones and I want to book the flight ticket from DFW to CLT?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travel dates are Apr 6 and Apr 8.

ASSISTANT: Can I know your name please?

USER:  Jonathan Jones.

ASSISTANT: Do you need any specifications?

USER: I need a single connection.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.