Hello.
user
Hello. How can I help you?
assistant
I am Lisa Nelson. I am plating a trip for business purpose, so can you book a ticket for me?
user
Yes sure. Can you tell me where you plan your business trip?
assistant
I am planing to go from TX-AUS to DC-IAD.
user
When you  like to take your flight?
assistant
These are my preferable dates 04/19 to 04/21.
user
I found a flight in AA airlines  with 1 connection. Would you like to book this ticket?
assistant
Yes, you can proceed.
user
OK. Your flight ticket is booked.
assistant
Thank you.
user
Thank you to reach us.
assistant