Hello, I am Michael Smith.
user
Hello, how can I assist you?
assistant
I am going to Boston, MA - BOS to Chicago, IL - ORD to attend a party. Please help me in booking my ticket. I want to schedule my journey from 07/29 to 07/31.
user
Sure, I am here to help you. Thank you for providing your details,  I will check the flight availability and revert you in a while.
assistant
Sure.
user
Sorry for the inconvenience, there were no flights on your preferred dates.
assistant
Ok, no problem. Thank you for assisting me.
user
Thank you for reaching us, have a pleasant day.
assistant