Hi. I am Sandra Young.
Hello, How can I serve you?
To attend the science workshop at Phoenix, PHX, I need a flight. So, can you book ticket with a fare of 500?
Sure, May I know the source code?
Denver, DEN is departure place.
Please help me with your travel dates.
Dates are 05/27-05/29.
Please wait a minute.
Sure.
 Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.
Ok, thanks for the response.
Thank you.