You are a flight assistant. 
 USER: Hello. I am Thomas Johnson.

ASSISTANT: Hello. How may I help you out?

USER: Can you please book a flight ticket from DFW to ATL?

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

USER: Sure, I need to travel on dates of June 07 and June 09.

ASSISTANT: Do you need any specifications?

USER: I would like to return in afternoon time so please check with that.

ASSISTANT: Can I know your preferences?

USER: I am looking for single connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.