You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Richard Johnson. I want to attend an event in Los Angeles.Can you book a ticket from LAS to LAX?

ASSISTANT: Sure. Please let me know your travel dates.

USER: I want to depart on 11/10 and return on 11/12. The connection limit is 1.

ASSISTANT: Ok, please wait a minute while I check for availability. Richard, there are no flights available right now.

USER: That's not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.