You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Kevin Lee. I want to fly from EWR and land at ORD, can you help me in booking?

ASSISTANT: Sure, please let me know your journey dates.

USER: I will start my journey on 06/27 and end on 06/29.

ASSISTANT: Kevin, there is a flight with AA airlines available with price 100. Shall I book the ticket for you?

USER: You can book it.

ASSISTANT: Your ticket is confirmed and the flight number is 1005.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a good day.