You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I would like to travel from ORD to BOS as a business trip, can you do the reservation?

ASSISTANT: Can I know your travelling dates?

USER: My journey dates are 06/06 and 06/08.

ASSISTANT: Do you have preference?

USER: I need only direct flight.

ASSISTANT: Can I know your name?

USER: Cynthia Walker here,.

ASSISTANT: Sorry, there is no flight with your travelling dates.

USER: No issue, thanks for the information.

ASSISTANT: Thank you.