Hello, Dennis Walker here.
user
Hello. How can I aid you?
assistant
 I have planned a small trip with our school teacher's staff, can you please help me to book a flight from HOU to LGA?
user
Sure, help me with the travelling dates.
assistant
I will go on 06/21 and return on 06/23.
user
I found a flight with number 1005 in airline AA. Can I book it?
assistant
Ok, you can book my ticket.
user
Your ticket is confirmed. Have a safe flight.
assistant
Most welcome.
user