Hello, Christine Turner here.
user
Hello, how may I help you?
assistant
I want to attend bio exhibition on 01/30, Can you please book me a ticket?
user
Yes, I am here to help you.
assistant
The airport codes are from TX - HOU to PA - PHL and return on 01/01.
user
Sorry, no flight has been found on that date. Hope to serve you next time.
assistant
Thanks for the information.
user
Thanks for connecting with us.
assistant