You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Charles Rodriguez, I would like to attend my sports events in SEA, so can you help me booking flight on 12/15?

ASSISTANT: I can help you with that.

USER: Thank you.

ASSISTANT: Can I know the return date and take off airport code please?

USER: I am going to return my source airport DEN on 12/17.

ASSISTANT: Ok, wait a moment please.

USER: Ok, I will wait for your reply but make sure with connection 1.

ASSISTANT: I found a flight with connection 1 and price is 300, shall I book it?

USER: Proceed to booking.

ASSISTANT: I have booked your ticket with flight number 1003.

USER: Thank you for confirming my flight ticket.

ASSISTANT: You are welcome, visit us again.