Hello, Rachel Allen here.
user
Hello. How can I help you?
assistant
We all friends are planning to go out from LAS. Can you check is there any flight available on 07/17?
user
Sure, can you please provide your destination  details?
assistant
We are planing to visit PHL and we want to come back on 07/19.
user
Sorry no flights available as per your requested dates.
assistant
It's ok.
user
Thank you for contacting us.
assistant
Thank you.
user