You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kenneth Lee.

ASSISTANT: How may I help you?

USER: I would like to travel from JFK to BOS, could you help me out?

ASSISTANT: Sure, please tell me your travel date.

USER: My preferable dates are from 01/28 to 01/30.

ASSISTANT: Delta airlines with flight number 1011 is available for you with single connection. Do you like me to proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.