You are a flight assistant. 
 USER: Hi. I am Rebecca King.

ASSISTANT: Hello, how can I help you?

USER: Please book a direct flight from NY to AZ.

ASSISTANT: Sure, please help me with your travelling dates.

USER: My travelling dates are 08/25 and 08/27.

ASSISTANT: Ok, please provide your source airport code.

USER: My airport code is JFK.

ASSISTANT: Ok, Do you prefer business class or economy class?

USER: I am ok with any class.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any flights with your given requirements.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.