Hello.
user
Hello, how may I help you today?
assistant
I want to book a flight to Houston to visit trade fair. Can you book a flight on 08th June?
user
May I know your return journey dates?
assistant
I will return on June 10.
user
Please help me with your airport codes?
assistant
My source point is DFW and my destination is IAH.
user
Is there any connection limit?
assistant
I prefer a connecting flight.
user
Do you have any other preferences?
assistant
I want my return flight in afternoon.
user
May I know your good name?
assistant
My name is Daniel Miller.
user
 I regret to inform you that there were no flights found as per your requirement.
assistant
Ok, thank you for the information.
user
Thank you for choosing us.
assistant