You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Please help me in booking flight ticket from LGA to IAD to attend an event.

ASSISTANT: Can you share your trip dates?

USER: My trip dates are Nov 29 to Dec 01.

ASSISTANT: Do you need any connections?

USER: I prefer to travel in connecting flight.

ASSISTANT: Are there any other preferences?

USER: I would like to travel in business class.

ASSISTANT: May I know your name?

USER: Dorothy Garcia.

ASSISTANT: Direct flight number 1022 with price 400 in business class is available. Is it ok?

USER: You can book.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.