You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to book a ticket from DEN to SEA?

ASSISTANT: Yes, can you share me your travelling dates?

USER: My travelling dates will be on Apr 2 to Apr 4.

ASSISTANT: Do you have any other specifications?

USER: I would prefer economy class. I need a connecting flight.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found an economy class ticket with a price of 200 and 1 connection.

USER: You can proceed to booking.

ASSISTANT: Can I know your name for booking?

USER: Gary King here.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.