You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to book flight ticket from ORD to EWR?

ASSISTANT: Sure, could you share your travelling dates?

USER: Sure, I would like to travel on Aug 4 and return on 6.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, may I know your name?

USER: I am Patrick Lee.

ASSISTANT: There is a flight on Delta airline, flight number 1011 with the fare of 100. Can I proceed?

USER: You can proceed with this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.