You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Sandra Green. I planned to meet my friend in HOU, can you help me to book a flight ticket from ATL?

ASSISTANT: Sure, may I know your trip dates?

USER: I prefer to travel on 12/07 and 12/09. I need a direct flight.

ASSISTANT: Sorry, there is no plane with 0 connection.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a great day.