You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have an appointment with family doctor in CLT. Can you please book a flight from SFO?

ASSISTANT: Sure. Tell me your travel dates please?

USER: Sure, I want to travel on Feb 4 and need to return on Feb 6.

ASSISTANT: May I know your name please?

USER: My name is Justin Hernandez.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found united airlines which is a stopover flight.

USER: Ok, please proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you.