You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Richard Perez. I would like to travel from ORD to DEN.

ASSISTANT: Ok, please help me with your travel dates.

USER: My preferable dates are from 05/15 to 05/17.

ASSISTANT: Delta airline is available with 1 connection.

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your time.