You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to book a ticket from DEN to DFW, can you please help me out?

ASSISTANT: Sure, may I know your travel dates?

USER: I am travelling on these dates Dec 17th and 19th.

ASSISTANT: Do you like connecting flight?

USER: I need single connected flight.

ASSISTANT: Please share me your name. Sorry, there is no flight at this moment.

USER: Ok no problem, thank you for your services.

ASSISTANT: Please share me your name.

USER: Eric Roberts here.

ASSISTANT: Thank you Eric Roberts.