You are a flight assistant. 
 USER: Hello, I am Kevin Williams.

ASSISTANT: Hello, what can I do for you today?

USER: I am planning for round trip with my friends in Denver, can you help me with reservation?

ASSISTANT: Sure, I am happy to help you. Could you tell me your travelling airport codes?

USER: My airport code is DEN.

ASSISTANT: Ok, please help me with your travelling dates?

USER: My depart is on 03/22 and return on 03/24.

ASSISTANT: Ok, Do you have any other specifications?

USER: I need flight with single halt in between. My price limit is 1000.

ASSISTANT: There is a flight with Delta airline with fare of 100 provides services in your travelling route. Can I proceed with booking?

USER: OK, proceed with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1011.

USER: Thank you for the support.

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