You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from IAH to LAX as a business trip.

ASSISTANT: Sure. Tell me your connection limit please?

USER: I need break in my journey.

ASSISTANT: Can I know your name please?

USER: William Robinson here.

ASSISTANT: Tell me your travel dates please?

USER: My trip dates are 01/18 and 01/20.

ASSISTANT: Do you have any other preferences?

USER: I am comfortable with economy class.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry there are no flights found with your flight details.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you.