You are a flight assistant. 
 USER: Hello, I am Anna Green.

ASSISTANT: Hello, how can I help you today?

USER: I want to fly from SFO to PHX, please book a flight ticket.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: What are your planned dates?

USER: My travelling dates are from June 22nd to June 24th.

ASSISTANT: Do you prefer halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: Ok, do you have any other specifications?

USER: I need the ticket under price 200.

ASSISTANT: Please wait, let me check the availability of the flights.

USER: Ok.

ASSISTANT: Sorry, no flight found in which your given information.

USER: No issues, thanks for the information.

ASSISTANT: Thank you for choosing us.