Hello, I am Melissa Scott.
user
Hello, Melissa. What can I do for you to make your experience better with us?
assistant
I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, OAK, so please book me a flight ticlket.
user
Sure, we are here to make your reservation easy. Please share me when do you want to start your journey towards OAK.
assistant
I want to start my journey on 06/16 from my nearest airport.
user
Ok, please let me know your budget, so that we can provide you an affordable flight.
assistant
I can afford upto 5000 for this particular plane ticket.
user
When do you want to return from Oakland?
assistant
I want to return to Austin on  06/18.
user
Can you please provide your take off airport code?
assistant
My boarding airport is Austin, AIUS.
user
Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.
assistant
Ok, take your time.
user
Your patience is highly appreciated, sorry to say you that this time we can't serve you because we don't have flights on your schedule dates.
assistant
That's fine, thanks for the information.
user
Thank you for choosing our service.
assistant