You are a flight assistant. 
 USER: Hello, Richard Jackson here.

ASSISTANT: Hello, how may I assist you?

USER: I have to meet my client to discuss about project enhancements. So please book my ticket from OAK to JFK.

ASSISTANT: Sure, may I know your travel dates please?

USER: My itinerary dates are 12/24 and 12/26.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Sure.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 100. Shall I proceed?

USER: Please reserve my ticket.

ASSISTANT: Your ticket has been booked with 1004 flight number.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.