Hello.
user
Hello. How can I guide you?
assistant
I am Samantha Robinson. I would like to book a  ticket from DEN to ORD, can you please help me out?
user
Ok, may I know your travelling dates?
assistant
I am travelling on these dates 03/05 and 03/07.
user
Sorry, no flights found on your preferable dates.
assistant
Ok no problem, thank you for your services.
user
Thank you for reaching us.
assistant