You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER:  I want to book a flight ticket from AUS to SFO. Could you help me in booking?

ASSISTANT: When you are willing to travel?

USER: My travelling dates are from Mar,18 and Mar,20.

ASSISTANT: May, I know your good name?

USER: Myself Laura King.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for reaching us.