You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to book a flight ticket to OAK from DCA, can you please help me out?

ASSISTANT: Sure, please help me with your travelling dates.

USER: Sure, my trip dates are Apr 22 and Apr 24.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, please let me know your connection limit.

USER: Sure, I am looking for a flight with 1 connection.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1017 Frontier Airlines with a fare of 100. Can I proceed?

USER: Ok, please confirm my reservation.

ASSISTANT: May I know your name?

USER: Sure, my name is Jonathan Brown.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.