Hello.
user
Hello. How can I help you?
assistant
I am Jack Phillips, can you help me to book a flight from LAX to ORD?
user
Can you please tell your travelling dates?
assistant
Ok, my travel departure date is 02/18 and return date is 02/20.
user
Sorry, there are no flights available with your requested details.
assistant
That's ok, not a problem. Thank you for assisting me.
user
Thank you and have a nice day.
assistant