You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a flight from ORD to LGA?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travelling dates are Jan 17 and 19.

ASSISTANT: Do you have any other preferences?

USER: I prefer economy class.

ASSISTANT: I have found an economy class ticket with a price of 100 and it is a direct flight.

USER: Proceed with booking.

ASSISTANT: Can I know your name for booking?

USER: My name is Margaret Wright.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.