Hello. I am Patrick Roberts.
user
Hello, how can I serve you today?
assistant
I need to attend a science museum festival at Seattle, can you help me to book a  flight ticket from BOS to SEA?
user
Sure, let me know your travelling dates?
assistant
I am travelling from July 6 to July 8.
user
Do you need any other specifications to be met?
assistant
Yes, I need a business class ticket.
user
Thanks for your details, there is no flight found on your desired locations.
assistant
No problem, thank you for the information.
user
Thank you for reaching us.
assistant