You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: John Allen here.

ASSISTANT: How can I aid you today?

USER: I want to book a ticket from IAH -CLT. Can you check it for the availability?

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

USER: My travelling dates are 04/15 and 04/17.

ASSISTANT: Do you need any other specifications?

USER: I want 1 halt in between my journey with normal cost.

ASSISTANT: The United Airlines are providing a flight having a connection limit 1. Are you ok with this flight?

USER: Yes, you can proceed with that one.

ASSISTANT: Your ticket is confirmed in a economy class and the flight number is 1002.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us. Have a safe journey.