You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may  I be of your helping hand today?

USER: I need you to book a flight ticket from SEA to BOS. Please help me.

ASSISTANT: Sure, can you please let me know your connection limit?

USER: I need a break in my journey.

ASSISTANT: May I know on which dates you wish to travel?

USER: July 9 and 11 are my planned travelling dates.

ASSISTANT: Please let me know, if you have any other preferences.

USER: Nothing much to state.

ASSISTANT: May I know your name to proceed further?

USER: Kevin Thompson.

ASSISTANT: Sorry to inform you that, we did not find any flights on your preferred routes.

USER: That's ok. Thank you.

ASSISTANT: Thank you for opting us.