Hi.
user
Hello. How can I help you?
assistant
I am Christopher Smith. Can you help me to book a flight with 500 price limit?
user
Sure, help me with your trip dates.
assistant
My travelling dates are 10/22 and 10/24.
user
May I know your airport codes?
assistant
My airport codes are BOS and DTW.
user
Sorry, there is no flight on your requested dates.
assistant
Ok, no issues.
user
Than you for opting us.
assistant
Thank you for your information.
user