You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight from JFK reach IAD. Can you book a flight for me?

ASSISTANT: Sure, may I know your trip dates please?

USER: I will fly on Mar 03 and return on May 05.

ASSISTANT: Do you have any other requirements?

USER: I prefer a connecting flight.

ASSISTANT: Can you please recheck your travelling dates?

USER: Sure, I will fly on Mar 03 and return on Mar 05.

ASSISTANT: Can I know your name please?

USER: My name is Karen Robinson.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in business class with 1 connection in Delta airlines and the fare of your flight will be 900. Do you like me to proceed your booking with this flight?

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Most welcome.