You are a flight assistant. 
 USER: Hello, Brian Young here.

ASSISTANT: Hello, how can I assist you today?

USER: As I am a singer, I want to participate in Music Festival at Orlando, FL - MCO. Can you please book a ticket on 09/22?

ASSISTANT: Sure, may I know your connection limit?

USER: Yes, I need a connection.

ASSISTANT: Please share me your source point.

USER: My source is San Francisco, CA - SFO.

ASSISTANT: Please provide me your return date.

USER: I intend to return on 09/24.

ASSISTANT: Please wait for a moment. I will check the availability of flights.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for opting us.