Hello.
user
Hello. How can I assist you?
assistant
I am Charles Martinez here. I am planning to meet my friend in San Francisco, SFO. Will you please help me in booking a flight ticket from OAK?
user
Sure, can you please let me know your journey dates that you wish to travel?
assistant
My journey dates are 10/07 and 10/09.
user
 Do you have any preference?
assistant
Yes, I need a connecting flight in my journey, please recheck with that.
user
Sorry to inform you that no flights were available on your travel dates.
assistant
It's ok, no problem. Anyway, thank you for the information.
user
 Thank you for availing us.
assistant
Thank you for your service.
user