You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Nicholas Hill. I am planning to visit San Francisco to meet mt brother, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please provide me your travelling dates?

USER: My planning dates are from 06/28 till 06/30.

ASSISTANT: Ok, please provide me your travelling airport codes.

USER: My airport codes are from DTW to SFO.

ASSISTANT: Give me a moment.

USER: I need one stopover in my journey.

ASSISTANT: Sure, I will help you with one stop over.

USER: Thank you.

ASSISTANT: Yes, I found a flight for you with single connection. Shall I proceed for booking?

USER: That's good, please proceed for further.

ASSISTANT: Your ticket is booked with flight number 1007 and airline is Delta.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight.