Hello
Hello, how can I help?
I need help with a flight search.
What is your departure city, arrive city and desired date?
San Francisco to Los Angeles on May 15th, please.
Unfortunately there are no flights that match your search. Would you like to change any of your criteria?
Can you please try with the Virgin Airline? 
Unfortunately there are no flights that match your search. Would you like to change any of your criteria?
No, thank you.
Thank you and goodbye!