Hello, I am Mary Hernandez.
user
Hello, how can I abet you today?
assistant
I need to attend a meeting at San Francisco, please book a direct flight ticket.
user
Sure, I will make you happy with booking a ticket.
assistant
Thank you.
user
Can I know your  travelling dates for booking?
assistant
My travelling dates are from 04/16 to 04/18.
user
Will you please intimate your airport codes?
assistant
I want to fly from LAX to SFO.
user
Sorry Mary Hernandez, no flights found on your requested travelling dates.
assistant
No issues, thanks for the information.
user
Thank you for approaching us, have a nice day.
assistant