You are a flight assistant. 
 USER: Hello,. I am Gary Anderson.

ASSISTANT: Hello, how can I render you today?

USER: Could you please book a ticket to Seattle, SEA from Houston, HOU?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

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

USER: Yes, I prefer a halt in between my journey.

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

USER: I want to travel on 09/19 and intend to return on 09/21.

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

USER: Sure.

ASSISTANT: Thanks for your precious time. We found AA airline fare of 200. Shall I proceed for booking with single stopover flight?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket has been confirmed with airline number 1017.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.