Hello, I am Andrew Johnson.
user
Hello, how may I help you today?
assistant
I planned to surprise a brother's birthday. I would like to book a flight ticket.
user
Sure, may I know your journey details?
assistant
I want to book a ticket from CO-DEN to TX-IAH. My travelling dates are 03/03 and 03/05.
user
OK, please wait for a moment I will check the availability of flights and inform you.
assistant
Ok.
user
Thank you for waiting, sorry to inform you that there is no flights available by the given days.
assistant
Thank you.
user
Thank you for choosing us.
assistant