Hello.
user
Hello.
assistant
I am Pamela Mitchell.
user
How may I help you?
assistant
I am planning to attend music concert at DTW, can you please help me with booking a flight ticket from IAD?
user
Sure, I will help you in booking the ticket. May I know your travelling dates please?
assistant
Sure, I would like to depart on Sept 21 and return on Sept 23.
user
Do you have any other specifications?
assistant
Yes, I need business class.
user
Sorry for this inconvenience, I could not find any flight with your requirements.
assistant
Ok, no issues. Thank you for the information.
user
Most welcome.
assistant