Hello, Linda Allen here.
user
Hello, how can I help you?
assistant
 I want to attend for an family get together in Philadelphia, can you assist me for booking a flight ticket with the price limit of 5000?
user
Sure, may I know your travelling dates?
assistant
 I would like to leave between 04/16 and 04/18.
user
May I know your airport abbreviates?
assistant
I would like to start at DTW to PHL.
user
Please wait for a while.
assistant
Ok.
user
Sorry to tell that there is no flight found on your name. Sorry.
assistant
Ok, no issues.
user
No flights found on your requested dates.
assistant
Thanks for the information.
user
Thank you for approaching us.
assistant