You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER:  I planned to attend for my parents 27th wedding anniversary in LAS, can you book the flight ticket from LAX?

ASSISTANT: Sure, may I know your planned dates of journey?

USER: Sure, my dates are 01/08 to 01/10.

ASSISTANT: May I know your good name, please?

USER: My name is Nicole Lopez.

ASSISTANT: No flights available for you on those dates, Lopez.

USER: That's fine, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing us.