You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me for booking a flight ticket to MSP in a normal cost airline?

ASSISTANT: Sure, can I know your travel dates?

USER: My planned dates are on July 23 and 25.

ASSISTANT: Do you have any specifications?

USER: I need a connected flight.

ASSISTANT: May I know your source code?

USER: I am boarding from PHL.

ASSISTANT: Please provide your name.

USER: David Lewis is my name.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.