You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Will you please help me to book a flight ticket from LAS to HOU?

ASSISTANT: Sure, we are glad to help you. Can you please let me know your travelling dates?

USER: My travel dates are Apr, 27 and Apr, 29.

ASSISTANT: Do you prefer any break in between journey?

USER: I would prefer single connection.

ASSISTANT: Are there any other specifications for you?

USER: I prefer to travel in business class.

ASSISTANT: May I know your good name?

USER: Betty Gonzalez here.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.