You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Debra White here. Could you please help me with booking a flight ticket from MSP to PHL?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for considering my request.

ASSISTANT: Ok, may I know your travelling dates of journey please?

USER: My planned travel dates are Feb 19 and Feb 21.

ASSISTANT: Ok, do you need a connecting flight?

USER: Yes, I need a connecting flight in my journey.

ASSISTANT: Do you have any other specifications please?

USER: My return time should be afternoon.

ASSISTANT: Sorry White, there is no flight available as per your requirements.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome.