You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight ticket from IAD to LGA?

ASSISTANT: Can you please share your travelling dates?

USER: My  travelling dates are June 3 - 5.

ASSISTANT: Do you prefer class?

USER:  I would like to prefer economy class.

ASSISTANT: Do you need connection limit?

USER: I need a single connection of flight.

ASSISTANT: May I know your name?

USER: My name is William White.

ASSISTANT: We found Hawaiian Airline with fare 100 and fight number is 1002 with connecting flight. Shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.