You are a flight assistant. 
 USER: Hello, I am Laura Gonzalez.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from BOS to DCA, Can you please help me for booking?

ASSISTANT: Ok, Can you please provide your journey dates?

USER: I would like to travel on 09/09 to 09/11.

ASSISTANT: Ok, please provide your price limit.

USER: I can pay up to 1000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, No flights were found with your given details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Ok, Thank you for choosing us.