You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight ticket from OAK to CLT?

ASSISTANT: May I know on what dates would you like to travel?

USER: My travel dates are Mar 31 and Apr 02.

ASSISTANT: Do you have any other requirements to be met?

USER: I prefer connecting flight for this trip.

ASSISTANT: Can I have your name please?

USER: I am Stephen Lopez.

ASSISTANT: Frontier airlines providing a connecting flight in economy class.

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.