Hello.
user
Hello. How can I aid you?
assistant
I am William Jackson want to book a ticket to Boston, BOS to attend a business meeting, can you please help me in booking a ticket on 07/13?
user
Ok, provide me your journey  date?
assistant
My arrival date is on 07/15.
user
May I know your source point?
assistant
My source point is at New York, NY-LGA.
user
Ok, please wait.
assistant
Ok.
user
 Sorry, no flights are found on your requested dates.
assistant
Ok, thank you.
user
 Thank you for availing us.
assistant