Hi.
user
Hello.
assistant
Anna Robinson here.
user
Anna, how can I assist you?
assistant
I would like to travel ORD for attending client meeting over there. Please, assist me  to book a flight ticket from PHL.
user
Sure, can you please tell me your trip dates?
assistant
My itinerary dates are 01/16 and 01/18.
user
Sorry Anna, there are no flights available on your given dates.
assistant
No problem, thank you so much.
user
Thank you for choosing us.
assistant