You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am Carolyn Adams. I want to book a ticket from PHL to SEA, can you help me?

ASSISTANT: Sure, please provide me your travelling dates.

USER: My travel dates are 12/17 and 12/19.

ASSISTANT: I found a direct flight with price 100, shall I proceed?

USER: You can book it.

ASSISTANT: Your ticket has been booked with flight-1000.

USER: Thank you for booking.

ASSISTANT: My pleasure.