You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Susan Robinson.

ASSISTANT: How may I help you?

USER: I am planning to go for round trip from DEN to DEN. Can you please help me out?

ASSISTANT: Sure, I am happy to help you. Can you please tell me your departure and arrival dates?

USER: Ok, my travelling dates are 04/25 and 04/27.

ASSISTANT: Ok, I have found a direct flight in this route which is charging the ticket fare of 100. Is it ok for you?

USER: Ok, please proceed.

ASSISTANT: Ok, I have booked your ticket with the flight number 1013.

USER: Thank you for your help.

ASSISTANT: You are most welcome.