You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Eric Gonzalez here. I want to attend a Seminar in Phoenix. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are from 07/01 to 07/03.

ASSISTANT: Sure, may I know your location airport codes?

USER: My airport codes are from LAS to PHX. Make sure my connections limit is 0.

ASSISTANT: Sorry, there is no flight on your requested connection limit.

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome.