You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit New York with my friends. Can you help me to book a ticket?

ASSISTANT: Sure, can you provide your journey dates for booking?

USER: My trip dates are 08/10 and 08/12.

ASSISTANT: Do you have any specifications?

USER: Price should not cross 5000.

ASSISTANT: May I know your airport codes?

USER: My airport codes are JFK-LGA.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: May I know your name?

USER: Timothy Turner here.

ASSISTANT: Sorry, there is no flight found on your given dates.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for opting us.