You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Gregory Perez. I would have to participate final match of tennis in San Francisco.Could you please help me for booking a flight ticket?

ASSISTANT: Sure we are here to help you, may I know your journey dates?

USER: My journey dates are 01/26 and 01/28.

ASSISTANT: Can you share your airport codes?

USER: My origin is IL-ORD and destination is CA-SFO.

ASSISTANT: Wait for couple of seconds.I will back and revert you.

USER: Sure.

ASSISTANT: We are glad to inform you that we have found a flight with your details. The airline is Spirit and the flight number is 1006 with price 100. Can I reserve?

USER: You may proceed with booking.

ASSISTANT: Your reservation is done. Thank you for reaching us.

USER: Thank you.

ASSISTANT: Have a safe journey.