You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I would like to travel from JFK to DFW, help me in booking a ticket?

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

USER: I like to travel on Sept 12 to 14.

ASSISTANT: Do your have any airline preferences?

USER: Yes. like to travel in normal-cost airlines.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I want 0 connection flights.

ASSISTANT: May I know your good name please?

USER: Linda Hill here.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.