You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Katherine Lopez.

ASSISTANT: Nice to meet you Katherine.

USER: I am looking for a flight from Las Vegas, can you help me in booking the flight ticket from LAS to SFO?

ASSISTANT: Sure, I will help you in flight ticket reservation. Ok, now please share your travel dates?

USER: Sure, my travel dates are 02/04 and 02/06.

ASSISTANT: Thanks for waiting patiently. But I am sorry to say that there are no flights available.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you.