Hello.
user
Hello. How can I aid you?
assistant
Can you please help me to search a flight with 1 connection limit in the month of  October?
user
Sure, may I know your travelling dates?
assistant
The travelling dates are 10/18 to 10/20.
user
May I know your airport codes?
assistant
The airport codes are from PA-PHL to DC-DCA.
user
May I know your name?
assistant
Sure, my name is Charles Garcia.
user
Sorry, there is no flight under your requested dates.
assistant
No problem.
user
Thank you for reaching us.
assistant
Thank you for your information.
user