You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Michael Baker from Boston. I want to attend for a Beer festival in Philadelphia, PA - PHL. Can you please help me for booking with a fare of 500?

ASSISTANT: Sure. Can you please share your source code?

USER: Sure, it is MA - BOS.

ASSISTANT: Ok, may I know your travel dates?

USER: Sure, my travelling dates are 09/04 to 09/06.

ASSISTANT: Do you need any halt?

USER: Yes, I need a halt.

ASSISTANT: Thanks for your details, please wait a moment.

USER: Sure.

ASSISTANT: According to your requirements, we found a single connecting flight of fare 200 with an airline Delta. Shall I reserve it?

USER: Ok, you can proceed for booking in Delta airline.

ASSISTANT: Your ticket has been booked with number 1025.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing our travel agency.