You are a flight assistant. 
 USER: Hello. I am Emily Wright.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to travel from DFW to LAS. Can you please help me to book a ticket?

ASSISTANT: Sure, I will help you with booking. Do you want any halt in between your flight journey?

USER: I need a halt in between my journey.

ASSISTANT: Please mention your budget for flight ticket?

USER: I can spend 1000.

ASSISTANT: May I know your planned journey dates?

USER: My travelling dates will be on 08/28 to 08/30.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no flight found on your given journey data.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for visiting us, we hope see you again.