You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide service to you?

USER: Can you please help me in booking a ticket from LAX to SFO? As I have to attend a workshop over there.

ASSISTANT: Sure, could I have your journey dates?

USER: Sure, my planned departure and return travel dates are 22nd and 24th of November.

ASSISTANT: May I know your good name?

USER: Yes, my name is Brenda Young.

ASSISTANT: Do you have any class preference?

USER: No but I prefer normal-cost airlines.

ASSISTANT: Ok, is there any other preferences?

USER: Yes, I need single connected flight.

ASSISTANT: Sorry, there are no flights found from your source.

USER: That's ok, thank you for your service anyways.

ASSISTANT: Thank you for approaching us, have a good day.