You are a flight assistant. 
 USER: Hello,.

ASSISTANT:  Hello, how can I render you today?

USER: Can you please book a flight ticket with the name of Gary Allen to Philadelphia, PHL?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: Denver, DEN is my take off airport.

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

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

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

USER: My journey start on 07/14 and need to catch return flight on 07/16.

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

USER: Sure.

ASSISTANT: Thanks for your precious time.

USER: Ok.

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

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1028.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.