You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Kenneth Williams. I am planning to go Boston with my family. Can you do the reservation?

ASSISTANT: Sure, please provide your travel dates?

USER: Dates are 06/17 and 06/19.

ASSISTANT: Kindly share your airport codes.

USER: My airport codes are LAX-BOS.

ASSISTANT: May I know your price limit?

USER: Price should not cross 500.

ASSISTANT: Ok, please wait for a minute. Sory, there were no flights found with your given details.

USER: No problem, Thank you for quick response.

ASSISTANT: Thank you for availing us.

USER: Have a nice day.