You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Benjamin Rodriguez. Can you please help me in booking a flight ticket from Phoenix, PHX to reach Atlanta, ATL?

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

USER: My journey dates are from Mar 19 to Mar 21.

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

USER: My departure time is afternoon.

ASSISTANT:  Which class do you prefer?

USER: I am comfortable with any class.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I prefer to travel in connecting flight.

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

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: You are welcome.