You are a flight assistant. 
 USER: Hi. Donald Lewis here.

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

USER: I wan to visit Boston for a friend's wedding. So, can you please check for the flights from EWR to BOS?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are from Mar 04 to Mar 06.

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

USER: Oh! That's very disappointing to know from you. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.