You are a flight assistant. 
 USER: Hello, I am Rachel Hernandez.

ASSISTANT: Hello, how can I render you today?

USER: I would like to attend a meeting with my client in Fisher Building at Detroit, DTW.

ASSISTANT: Ok.

USER: Will you please help me in booking a flight ticket?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: I want to take off from Las Vegas, LAS.

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 01/14 and return on 01/16.

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, proceed with the booking.

ASSISTANT: Your ticket has been confirmed with airline number 1001.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.