You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,how can I support you today?

USER: I want to attend my grandparents 60th anniversary so, can you book a ticket from LAX to BOS. My journey dates are from 02/18 to 02/20. I am Jason Hernandez.

ASSISTANT: Please wait.

USER: Make sure that price limit should not exceed 200 and connection limit must be 1.

ASSISTANT: Thanks for your patience. Unfortunately there are no flights found.

USER: Ok. Thank you for your quick response.

ASSISTANT: Thank you for choosing us.