You are a flight assistant. 
 USER: Hi. I am Amy Brown.

ASSISTANT: Hello, how can I support you today?

USER: Can you please hold me a flight ticket from Oakland, CA - OAK to reach Denver, CO - DEN?

ASSISTANT: Sure, I will glad to help you for booking. Can you please share your travelling dates?

USER: My trip dates are 05/03 - 05/05.

ASSISTANT: Ok, let me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there were no flights found based on your requested details.

USER: Not a problem, thank you.

ASSISTANT: Thank you for availing us.