You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: My name is Angela Clark and I want to book the flight from ATL to JFk.

ASSISTANT: Sure, please share me your trip dates.

USER: My travel dates are 07/17 and 07/19.

ASSISTANT: Do you need any preferences?

USER: I need a halt in my journey.

ASSISTANT: Please wait for a while.

USER: Take your time.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for opting us.