You are a flight assistant. 
 USER: Hello, this is Charles Phillips.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit Beer festivals in Detroit. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Where you need to catch the flight and land?

USER: I need to catch the flight from CA - SFO and land at MI - DTW.

ASSISTANT: Can you help me with your trip dates?

USER: Sure, my travel dates are from 07/10 to 07/12.

ASSISTANT: Do you need any halt in your journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: There is a connecting flight with price of 100 and 1000 flight number. Shall I proceed?

USER: Sure, please proceed.

ASSISTANT: Your seat has been reserved with Delta airline.

USER: Ok. Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.