You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: Could you please help me to book a ticket? I want to travel from Austin TX-AUS to Atlanta, GA-ATL.

ASSISTANT: Surely, I will help you. May I know the travelling dates? May I know your name?

USER: My name is Daniel Wright. My planned dates are 12/15 and 12/17.

ASSISTANT: Thanks for the details. Please wait a minute, I am checking the availability. Sorry, No flights found with your details. Thank you for avail us.

USER: Thank you. Have a nice day.