You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you avail me to book a flight from IAD to LAS?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are Apr 19 and 21.

ASSISTANT: Do you prefer a stopover in between your journey?

USER: I need a way station in my journey.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, may I know your name to proceed further?

USER: Sure, Nicholas Green here.

ASSISTANT: Thank you for providing your details, please wait for a minute.

USER: Sure.

ASSISTANT: We found a business class ticket in United Airlines with flight number 1000 having a single connection. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your extreme support.

ASSISTANT: Thank you for connecting with us.