You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Can you please help me to book a ticket from CLT to ORD?

ASSISTANT: Sure, I am here to help you with that. Can I know your planned trip dates?

USER: My travelling dates are on July 13 and July 15.

ASSISTANT: Ok, please let me know your preferable timings of your journey.

USER: I do not have any specific timing to travel.

ASSISTANT: Do you  have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Can I have your good name please?

USER: My name is Patrick Evans.

ASSISTANT: UA airlines running a flight with connection 0 and the ticket fare is 500 in business class. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Ok, your  ticket booking has done and the flight number is 1023.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.