You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to meet my friend in Boston. Can you please help me with booking a flight ticket from AUS to BOS?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travel dates are July 10 and July 12.

ASSISTANT: May I know your airline preference?

USER: I prefer to book my ticket in Normal -cost airline.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight in my journey.

ASSISTANT: May I know your name please?

USER: My name is Jennifer Lee.

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

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.