Hello.
user
Hello, how can I help you?
assistant
Can you help me to book a flight ticket from CLT to IAH?
user
 Sure, may I know the travelling dates?
assistant
I want to take off on 12 July and return on 14 July.
user
Do you have any connection limit?
assistant
I want a connecting flight.
user
Are there any other specifications?
assistant
No.
user
May I know your name?
assistant
I am Ronald Hernandez.
user
 Sorry, no flights found with your chosen dates.
assistant
It's ok, not a problem, thank you.
user
Thank you for opting us.
assistant