You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how best can I guide you today?

USER: Can you please help me in booking from DEN to LAS?

ASSISTANT: Sure, when are you planning to start and return on?

USER: My travelling dates are from July 3 to July 5.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: My name is Catherine Johnson.

ASSISTANT: Thank you for your details, we found a connecting flight 1019 in American Airline in class economy. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.