You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Perez.

ASSISTANT: How can I assist you?

USER: I planned to attend for an event in LAS, can you please help me to book a flight ticket from LAX?

ASSISTANT: Sure, can I know your travel dates?

USER: I planned to travel on 07/01 and 07/03.

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

USER: Ok, no problem. Thank you for your time.

ASSISTANT: You are welcome.