You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Cynthia Clark.

ASSISTANT: How can I help you today?

USER:  I would like to enjoy my weekend trip with my friends. Can you please book a ticket within the price of 500?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: Sure, my travelling dates are 10/23 and 10/25.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: Sure, I want to fly from DTW to IAH.

ASSISTANT: Here, I found a flight for you with single connection.

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1016 and airline is UA.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight. Thank you for opting us.