Hello, I am Ronald Allen.
Hello, how may I aid you today?
 Will you help me to book a flight ticket from BOS to SEA to meet my school friend after a long time?
Sure, we are here to help you. May I know when did you planned to travel?
My depart is on 06/30 and return on 07/02.
Do you have any price limit?
My price limit is 200.
Ok, please wait a moment.
OK.
Sorry to say that there were no flights found on your preferred dates.
No problem, thank you for he information.
Thank you for choosing us.