You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Kenneth Hill. I am a dancer and I would like to participate in the heritage festival which is in Oakland. Could you please help me in booking?

ASSISTANT: Sure, I will help you. May I know your airport codes?

USER: My source code is Denver CO-DEN and destination code is Oakland CA-OAK.

ASSISTANT: When would you like to travel?

USER: I would like to travel on 05/03 and 05/05. I need a direct flight.

ASSISTANT: We found a flight on your details with airline JetBlue, flight number: 1015. Shall I book this ticket?

USER: If it is direct flight, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your kind help.

ASSISTANT: Thank you so much for communicating us.