Hi.
user
Hello, what can I do for you?
assistant
I am planning to take my children to International Children's Festival at New York, LGA. Can you please help me in booking?
user
Sure, may I know your  travelling dates?
assistant
My travel dates are from 11/02 to 11/04.
user
Where are you going to board from?
assistant
My source is at TX-DFW.
user
May I know your name?
assistant
I am Charles Thomas.
user
Please wait a minute.
assistant
Ok.
user
There are no flight available on your preferred dates.
assistant
Ok, no problem. Thank you.
user
Thank you for choosing us, hope we serve you next time.
assistant