You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need to travel Seattle, can you reserve flight ticket from DFW and SEA?

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

USER: My travelling dates are Jan,14 and Jan,16.

ASSISTANT: May I know your connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Is there any class preference for you?

USER: No, but make sure my depart time should be in the afternoon.

ASSISTANT: Your good name please.

USER: Myself Gary Mitchell.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: That's ok, I will choose any alternate source to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.