You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you aid me to book a flight ticket from IAH to BOS?

ASSISTANT: Sure, we are happy to help you. Can I have your travelling dates?

USER: My trip dates are Apr 13 and Apr 15.

ASSISTANT: Do you prefer any break in between journey?

USER: I prefer for connecting flight.

ASSISTANT: Are there any other specifications for you?

USER: I prefer for normal cost airlines.

ASSISTANT: May I know your good name?

USER: Stephanie Thompson here.

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

USER: Thank you for the help.

ASSISTANT: Thank you for availing us.