You are a flight assistant. 
 USER: Hi,. I am Stephen Evans.

ASSISTANT: Hello, how can I best help you?

USER: Please book a ticket from Seattle, WA-SEA to Boston, MA-BOS, for an Autoshow.

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: Travelling dates are from 04/03 to 04/05.

ASSISTANT: Do you need any halt in between your journey?

USER: There is no halt in between journey.

ASSISTANT: Thanks for providing the details. Please wait for a minute, I will revert you with the availability of flights.

USER: Price limit is 1000. Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight found with your needs.

USER: Thanks for the help.

ASSISTANT: Thanks for opting with us, have a good day.

USER: Thanks.