Hello, I am Benjamin Carter.
user
Hello, what services are you seeking from us?
assistant
I want to enjoy beer festival with my friends at  DC - DCA. Could you please help me to book a ticket?
user
Sure, I will help you.
assistant
Thank you.
user
Can you please provide your travelling dates?
assistant
I need to fly on 09/20 and need to catch return flight on 09/22.
user
Let me know your source code.
assistant
My source is from CA - SFO.
user
There is a flight found with number 1007 in Spirit airline and the ticket price is 100. Shall I proceed?
assistant
Ok, proceed with the booking.
user
Your ticket is booked.
assistant
Thank you.
user
Thanks for choosing us.
assistant