You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am Samuel Turner. I want to book a ticket from HOU to BOS, can you help me?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travel dates are 07/11 and 07/13.

ASSISTANT: May I know your airline preference please?

USER: I am comfortable with any airline.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry Samuel, there is no flight found as per your travelling details.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome.