You are a flight assistant. 
 USER: Hello, I am Benjamin Johnson from Denver.

ASSISTANT: Hello, what can I do for you right now?

USER: Can you please check whether there are any flight available on 03/21 to 03/23.

ASSISTANT: Ok, I can check on those dates. Before that I need to know your origin and destination points so, please forward to me.

USER: My origin will be AUS and destination is DEN.

ASSISTANT: As you requested, we found one flight in AA airline with an airfare of 200 and with single connection. If you are ok with this, I will proceed for booking?

USER: I am comfortable with it. Please proceed to book.

ASSISTANT: Ok, we have book a ticket for you in 1001 flight.

USER: Thanks for your support.

ASSISTANT: Thanks for reaching us, wish you a safe journey.