You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Laura Evans here.

ASSISTANT: Evans, how may I aid you?

USER: I want to fly to Oakland on 08/17 and return back on 08/19. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, please provide your airport codes.

USER: Sure, my airport codes are OAK and MSP.

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

USER: Ok, I will wait for your response.

ASSISTANT: Do you have any specifications?

USER: No, book a flight with the details mentioned above.

ASSISTANT: Frontier airlines with flight 1027 is available.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.