You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Robert Miller. I am a writer and I have to submit my new story in the printing press to print my article, so can you help me to book a flight ticket for me from OAK to CLT?

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, the trip dates are 09/17 and back on 09/19.

ASSISTANT: The Frontier airline with flight number 1021 is available having price as 100 and connection as 1. Would you like me to book this plane ticket?

USER: Ok and please search the direct flight for me.

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

USER: That's not a problem for me, thank you for your service.

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