You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: We friends were are planning to go for trekking at Mount Evans, can you please hold me a flight ticket to Denver, CO-DEN?

ASSISTANT: Sure, I would be happy to help you. Do you need a stopover in between your journey?

USER: Thank you. Yes, I need a halt.

ASSISTANT: What are your planned trip dates?

USER: I have planned to go on 01/12 and return back on 01/14.

ASSISTANT: Can you please provide your take off airport code?

USER: Sure, I would like to take off from Los Angeles, CA-LAX.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure, I will be waiting for your response.

ASSISTANT:  Thanks for your precious time. We found Delta airline fare of 400. Shall I proceed for booking with single stop over flight?

USER: Please go ahead with the booking.

ASSISTANT: To proceed for further booking I need your name?

USER: Book it on the name Scott Lewis.

ASSISTANT: Your ticket has been confirmed with airline number 1029.

USER: Thank you for your valuable service.

ASSISTANT: Thank you for opting us. Have a safe journey!.