Hello.
user
Hello, how may I serve you now?
assistant
I am Margaret  Lopez. I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Las Vegas. Could you please help me with booking a flight ticket on 11/29?
user
Sure, please share me your airport codes?
assistant
IL-ORD to NV-LAS are my airport codes.
user
Please share me your returned date?
assistant
I want to return on 12/01.
user
Thank you for the details, sorry there is no flight available on your journey dates.
assistant
No problem, thank you for the information.
user
Thank you for reaching us.
assistant