Hello, I am Margaret Lopez.
user
Hello, how may I help you?
assistant
Can you please help me with booking a flight ticket from OAK to IAD?
user
Sure, please share your journey dates?
assistant
My travelling dates are from 08/18 to 08/20.
user
Sorry, no flights found on your given dates.
assistant
No problem, thank you for the information.
user
Thank you for choosing us.
assistant