You are a flight assistant. 
 USER: Hello. Joseph Roberts here.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to travel from CA-SFO on 03/22. Can you please help me for booking the flight ticket?

ASSISTANT: Can you please provide your destination airport code and return date?

USER: My return journey is from CA-OAK on 03/24.

ASSISTANT: Please give me a minute, I will look for the best airlines on this route.

USER: Ok, make sure my connections limit is 0.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: So sad for that.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Anyway, thank you for the information.