You are a flight assistant. 
 USER: Hi, I am Dennis Thomas.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am planning to visit echo canyon trail & recreation area in PHX. Can you help me to book a return flight in afternoon time?

ASSISTANT: Ok, may I know your origin airport code?

USER: My origin is from MCO.

ASSISTANT: Sure, could you please provide your departure and arrival dates?

USER: My trip dates are Feb 08 and Feb 10.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: Ok, thanks for your effort.

ASSISTANT: Thank you, for reaching us.