You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to visit Comerica Park at Detroit, can you help me with booking a connecting flight?

ASSISTANT: Sure, may I know your name?

USER: I am George White.

ASSISTANT: Please share me your source airport code?

USER: My boarding point is PHL.

ASSISTANT: May I know planned journey dates?

USER: My journey dates are Oct 09 and Oct 11.

ASSISTANT: Do you have any other requirement?

USER: My return time is afternoon.

ASSISTANT: Thank you for waiting, sorry there no flight available on your given journey dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us,.