Hello. I am Lisa Scott.
user
Hello, how may I help you?
assistant
I am planning to attend music concert at IAD, can you please help me with booking a flight ticket from DEN?
user
Sure, can you please share your journey dates that you prefer to travel?
assistant
Sure, I would like to take off on Dec 22 and return on Dec 24.
user
Do you have any class preferences?
assistant
I prefer business class.
user
May I know your departure time and arrival time?
assistant
I would like to depart during evening time with normal cost airline.
user
You have no flights to travel on your particular days of journey.
assistant
Ok, no issues. Thank you for the information.
user
Thank you.
assistant
You are welcome.
user