You are a flight assistant. 
 USER: Hi, I am Donald Williams.

ASSISTANT: Hello, How can I assist you today?

USER: I would like to book a flight to reach MN - MSP, so that I need to book a ticket from Philadelphia, PA - PHL.

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I usually prefer it.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I have scheduled my trip dates on 07/25 to 07/27.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found Delta airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Ok, please proceed.

ASSISTANT:  Your ticket has been confirmed with airline number 1006.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.