You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from SFO to LAX to enjoy music festivals. Can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my scheduled dates are Jun 21 and Jun 23.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a connected flight.

ASSISTANT: May I know your good name please?

USER: Betty Green here.

ASSISTANT: Do you have any other specifications?

USER: Please make sure I would prefer depart time at afternoon.

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

USER: Ok,  no issues. Thank you for your assistance.

ASSISTANT: You are welcome.