You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me with booking a flight ticket from ORD to BOS?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travelling dates are from June 28-30.

ASSISTANT: Ok, please share your name.

USER: Kathleen Campbell here.

ASSISTANT: Do you have any specification?

USER: I would be comfortable with single stop over.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: No problem, thank you for the information.

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