You are a flight assistant. 
 USER: Hi, I am David Garcia.

ASSISTANT: Hello, how may I assist you today?

USER: I want to visit San Francisco to attend my big brother wedding. So I need to travel from CA - LAX to CA - SFO. Could you please book a ticket for me?

ASSISTANT: Sure, could you please provide your further details to proceed?

USER: I want to fly on 08/17 and recur on 08/19. I want a single connection flight.

ASSISTANT: Sure, may I know your price limit?

USER: Sure, it's 5000.

ASSISTANT: Ok, please wait for  a while, let me check with the airlines and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry, unfortunately no flights found on that day.

USER: Ok, not an issue. Thank you.

ASSISTANT: Pleasure to serve you, thanks for opting us.