Hi, I'm Donald Allen.
user
Hello Allen, how can I help you?
assistant
I got an invitation to host a program which is going to be held in San Francisco, can you please help me in ticket booking?
user
Sure, I am happy to help you. May I know your travelling airport codes please?
assistant
Well, I'm planning to take off from my nearest airport LAS and land on SFO.
user
When you would like me to book the tickets?
assistant
Please book the ticket from here on 09/02 along with the return ticket on 09/04.
user
Wait a while please, let me check the flights availability on this route.
assistant
Sure, take your time.
user
Sorry to inform you that, there are no flights available on your dates due to heavy bookings.
assistant
That's ok, I will try to go by some other way of transportation. Thank you for your time.
user
Thank you and have a nice day.
assistant