You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me to book a flight ticket in my preferable travel dates Dec, 17 and Dec, 19?

ASSISTANT: Sure, may I know your airport codes?

USER: LGA and SEA are my airport codes.

ASSISTANT: Is there any connection limit?

USER: I would prefer single connection.

ASSISTANT: Can you please share your arrival and depart timings?

USER: I need to depart at evening time.

ASSISTANT: Do you have any other specifications?

USER: No, thanks.

ASSISTANT: Please forward your name.

USER: My name is Gregory Phillips.

ASSISTANT: We found a connecting flight of fare 600 with airline Delta and number 1015. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in business class and depart is in the evening at 23:00 hours.

USER: Thank you.

ASSISTANT: Thank you.