You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist  you today?

USER: Could you book my ticket in a connecting flight?

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

USER: My itinerary dates are Oct 8 and 10.

ASSISTANT: May I know your planned airport codes?

USER: My genesis and terminus airport codes are JFK and DFW.

ASSISTANT: Do you have any another preferences on your journey?

USER: No.

ASSISTANT: May I know your name for the booking process?

USER: Lisa Lewis here.

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

USER: No problem, thank you.

ASSISTANT: Welcome, thank you for reaching us.