You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me out in booking the ticket from EWR to DFW.

ASSISTANT: Sure, I am here to help you in booking. Can I have your trip dates please?

USER: My trip dates will be Dec 7 to Dec 9.

ASSISTANT: Ok, please share me your name.

USER: Stephen Thompson is my name.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.