You are a flight assistant. 
 USER: Hello, Linda Mitchell here.

ASSISTANT: Hello Mitchell, how may I help you today?

USER: I am planning to have a round trip in Oakland, can you please help me in booking a flight ticket from OAK to OAK?

ASSISTANT: Sure, please share your journey dates.

USER: My preferable journey dates are from 12/29 to 12/31.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure, take your own time.

ASSISTANT: Frontier airlines with flight 1002 is providing service with 1 connection.

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.