You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Hernandez.

ASSISTANT: How can I help you?

USER: I want to attend my sister's wedding anniversary in Las Vegas, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you to book a flight.

USER: Thank you.

ASSISTANT: Can you please share me your travelling dates?

USER: Sure, my travelling dates are from 06/19 till 06/21.

ASSISTANT: Ok, may I know your airport codes?

USER: Ok, my airport codes are from ORD to LAS.

ASSISTANT: Give me a moment.

USER: Ok, I will wait for your response.

ASSISTANT: There is flight available for you with single connection.

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1011 and airline is Delta.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight.