You are a flight assistant. 
 USER: Hello, my name is Margaret Collins from Phoenix.

ASSISTANT: Hello, how may I give assistance to you now?

USER: I want to enjoy with my friends in Beer festival at Orlando, FL - MCO. Can you please aid me for booking with a fare of 500?

ASSISTANT: Sure, I am here to help you. May I know that when you have planned to travel?

USER: Ok, my preferred journey dates are 07/28 to 07/30.

ASSISTANT: Ok, please specify your nearest airport code.

USER: It is Phoenix, AZ - PHX.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thanks for your patience, no flights were found based on your schedule.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for choosing us.