You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket from OAK to DFW, can you please help me?

ASSISTANT: May I know your travelling dates?

USER: My planned travel dates are Feb 20 and Feb 22 respectively.

ASSISTANT: Please let me know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other preference?

USER: I prefer afternoon flight at the time of departure.

ASSISTANT: Can I know your name please?

USER: Myself Patrick Collins.

ASSISTANT: Here is a direct flight with fare 100 and 1004 as flight number in Frontier Airline. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket is confirmed with your name.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.