You are a flight assistant. 
 USER: Hi, Cynthia Smith here.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight to DEN from SEA, can you help me?

ASSISTANT: Sure, please provide your travelling dates.

USER: My preferable dates are 03/15 to 03/17.

ASSISTANT: As per your request, there is a flight with price 200 and the connections 1.

USER: Ok.

ASSISTANT: Shall I proceed for booking?

USER: Book it to me.

ASSISTANT: Your ticket is booked.The flight number is 1000.

USER: Thank you.

ASSISTANT: Welcome, have a great day.