You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I need to travel from DFW to LAS, can you help me?

ASSISTANT: Sure, can you please share your travel dates?

USER: My trip dates are 05/04 and 05/06.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: My depart time must be in afternoon.

ASSISTANT: May I know your name please?

USER: I am Anthony Phillips.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for opting us.