You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Anna Garcia. Can you please help me in booking my flight ticket from PHL to ORD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are Nov 05 and 07.

ASSISTANT: Do you have any specifications?

USER: I need morning flight at return journey and please search for business class.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.