You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you for the day?

USER: Daniel Taylor here. Please help me out in booking the ticket from IAH to LAX.

ASSISTANT: Sure, I will help you with that. Can you please provide your travel dates?

USER: My trip dates will be Jan 19 to Jan 21.

ASSISTANT: Do you have any other preferences?

USER: Yes, I need 1 lay by with in my route.

ASSISTANT: There is a connecting flight in Southwest airline with a fare of 300. Shall I book it?

USER: As, my budget is low I can afford only up to 200.

ASSISTANT: There is no flight available as per your budget.

USER: That's ok, anyways thank you.

ASSISTANT: Thank you for reaching us, have a great day.