Hi.
user
Hello, what can I do for you today?
assistant
I am Shirley Phillips. I would like to book a flight ticket to attend a robotic workshop, can you help me to book a direct  flight'?
user
Sure, may I know your airport codes?
assistant
My airport codes are PHL and JFK.
user
Ok, provide your travelling dates.
assistant
My travelling dates are 11/15 and 11/17.
user
Ok, do you have any other requirements?
assistant
I want to return at evening.
user
There are no flights found on your requested dates.
assistant
That's ok, thank you for the response.
user
Thank you for reaching us.
assistant