You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Benjamin Hernandez here. Can you please help me in booking the ticket from IAD to LAS?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, my journey dates are 08/21 and 08/23.

ASSISTANT: Please give me a moment.

USER: Sure, I'll wait.

ASSISTANT: There is a flight with price 200 and the connections 0 is available.

USER: Please search for a flight with 1 connection.

ASSISTANT: There is no flights available with connections 1.

USER: That's ok, thank you for your time.

ASSISTANT: Welcome, have a great day.