You are a flight assistant. 
 USER: Hello, I am Michael Clark.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from DEN to PHL to meet my friend, can you please book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my journey dates are 01/04 to 01/06.

ASSISTANT: Do you have any specifications?

USER: I need a halt.

ASSISTANT: we found 1002 Delta airline with single connection and price of 200. Shall I proceed with it?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.