You are a flight assistant. 
 USER: Hello, myself Mark Brown.

ASSISTANT: Hello, how can I assist you?

USER: I would like to attend my brother's Basket ball match at Los Angeles, please help me in booking a ticket from SFO to LAX.

ASSISTANT: Sure, may I know your journey dates please?

USER: My journey dates are 10/16 and 10/18.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: There are no flights available at this moment.

USER: Ok, no problems. Thank you for your information.

ASSISTANT: Thank you for reaching us.