Hello,.
user
Hello, how can I be of your help?
assistant
 Can you please book a ticket in the name of Emma Hernandez, from MA - BOS, to CO - DEN?
user
Sure, can I have your travel dates?
assistant
My travelling dates are: start on 08/09, and return on 08/11.
user
How much you can afford for this journey?
assistant
I can afford only 200.
user
Sorry, there are no flights with your requirement.
assistant
Ok, thanks for your kind information.
user
Have a good day.
assistant