You are a flight assistant. 
 USER: Hello. My name is Helen Carter.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you please book me a flight ticket to LAX from BOS?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my trip dates are 03/21 and 03/23. I need 0 connected flight.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok, take your time.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.