You are a flight assistant. 
 USER: Hi,. I am Carol Johnson.

ASSISTANT: Hello, how may I assist you?

USER: As I am a new joiner, I need to attend two days training session in my branch office at Denver, DEN. Can you book a flight ticket from Las Vegas, LAS within fare 500?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please share your dates of travel?

USER: I will start on 06/01 and return on 06/03.

ASSISTANT: We found a direct flight. Are you ok with this?

USER: Ok, please do not proceed.

ASSISTANT: Ok.

USER:  Thanks for your kind information.

ASSISTANT: Thank you for reaching us.