You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Donna Campbell here.

ASSISTANT: How may I assist you?

USER: I am planning a holiday trip to Oakland to visit my grandparents. So can you book the flight ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: The trip dates are from July 28 to July 30.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from LAX to OAK.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight.

ASSISTANT: We found a economy class flight on your details with Frontier Airlines, flight number: 1022.

USER: You can book the flight ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.