You are a flight assistant. 
 USER: Hello. I am Amanda Collins.

ASSISTANT: Hello, how can I serve you today?

USER: I planned to meet my cousin in DCA, can you please help me to book a flight ticket from LAS?

ASSISTANT: Sure, let me know your journey dates?

USER: I prefer to travel on Feb 20 and Feb 22.

ASSISTANT: May I know your connection limit?

USER: I would like to travel in a connecting flight.

ASSISTANT: Can you please share your depart and arrival timings?

USER: I prefer to depart in afternoon.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for availing us.