You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Anna Johnson. Can you please help me with booking a flight ticket from MSP to PHL?

ASSISTANT: Sure, can you please share your travel dates?

USER: Travel dates are 02/27 and 02/29.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I would like to return at afternoon.

ASSISTANT: Anna Johnson, I am sorry to inform you that there is no flight available at your request.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: You are welcome. Thank you for contacting us.