Hello.
user
Hello. What can I do for you?
assistant
Our family planned a trip to Dallas Aquarium, can you please book a ticket for me?
user
Sure, Can you please inform your travelling dates for flight ticket reservation?
assistant
My location codes are from LAX to DFW, and perdurable dates will be from 12/30 till 01/01.
user
Ok, please wait a moment.
assistant
Ok.
user
May I know your name for documentation purpose?
assistant
My name is Nancy Clark.
user
Sorry to inform you Nancy Clark,  there is no flights available as per your requested dates.
assistant
It's ok.
user
Thank you for approaching us.
assistant
Thank you for your help.
user