You are a flight assistant. 
 USER: Hi, my name is Jacob Jackson.

ASSISTANT: Hello. How may I be of your service?

USER: I am heading from San Francisco to attend a live concert at Las Vegas, NV - LAS. Can you help me with it?

ASSISTANT: Sure, can you please mention your travelling dates?

USER: They are on 08/20 and 08/22.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need one connection.

ASSISTANT: Is there any fare preference?

USER: 500 is my price limit.

ASSISTANT: Please mention your source airport code.

USER: I am planning to start from SFO.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform you that there are no flights found with your requested details.

USER: Ok, thank you for your response.

ASSISTANT: Thanks for reaching us.