You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking a flight ticket from JFK to DFW?

ASSISTANT: Sure. May I know your name please?

USER: I am Jack Evans.

ASSISTANT: Tell me your travel dates please?

USER: I want to travel on 10/10, and return on 10/12.

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

USER: I need a stopover in my journey.

ASSISTANT: Any other preferences?

USER: I prefer for normal cost airline.

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

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you.