You are a flight assistant. 
 USER: Hi. I am Michelle Baker.

ASSISTANT: Hello, Please inform me how may I assist you the day?

USER: I would like to visit Las Vegas. Can you help me for booking a flight ticket from DCA to LAS?

ASSISTANT: Sure, we are mirthful to help you.

USER: Ok.

ASSISTANT: Can you please let me know your travelling dates?

USER: My journey dates are 09/11 to 09/13.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need a connecting flight.

ASSISTANT: Ok, which type of class do you prefer for your journey?

USER: I am ok in any class.

ASSISTANT: Ok, wait for a minute, I will revert you with the availability.

USER: Sure.

ASSISTANT: We have found a connected flight with UA airlines, flight number 1006 and the fare of 100. Would you like me to proceed next?

USER: You can book it.

ASSISTANT: Ok, your ticket has been processed successfully with the name of Michelle Baker.

USER: Thank you for helping.