You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please book a flight ticket from EWR to DTW?

ASSISTANT: Sure, could you please help me with your travelling dates?

USER: My travelling dates are from Dec 31 to Jan 2. I need a connecting flight.

ASSISTANT: Ok, can I know your class preference?

USER: I don't have any class preference.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: There is a flight of Delta airline, flight number 1009 with the fare of 100. Can I proceed?

USER: Ok, proceed.

ASSISTANT: May I know your name, please?

USER: My name is Gregory Adams.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.