You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: Can you please help me in booking my flight ticket from JFK to SEA?

ASSISTANT: Sure. Tell me your travel dates please?

USER: My travelling dates are from 08/21 to 08/23.

ASSISTANT: May I know your name please?

USER: Myself Carolyn Williams.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes, I need a single stopover.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Please wait. Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Sure. It's ok, thank you.

ASSISTANT: Thank you.