You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I support you today?

USER: Myself Joseph Perez. Can you please book me a ticket from LAX, as I am going to attend a meeting conducted by central government at LAS?

ASSISTANT: Sure, I will help you in booking. Let me know your travelling dates.

USER: Thank you. Sure, my planned trip dates are Oct 28th and 30th.

ASSISTANT: Please provide your specifications.

USER: I can afford only 5000 and my at most connections should be a single connection.

ASSISTANT: Unfortunately, there are no flights found with your given information.

USER: Ok, no problem. It is not an issue. Anyways thank you for the information.

ASSISTANT: Thank you for choosing us.