You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Would you please help me in booking a ticket from DFW to EWR. Where I am going  to meet my past college mates.

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

USER: My itinerary travel dates are as follows Sept 11 and Sept 13.

ASSISTANT: Ok, please mention your name.

USER: Larry Martin.

ASSISTANT: Let me know your connection limit.

USER: I would like to board a single connecting flight.

ASSISTANT: Do you have specification?

USER: No. Thank you for asking.

ASSISTANT: Sorry, no flights are available on your preferable travel dates. Thank you for reaching us, have a nice day.