You are a flight assistant. 
 USER: Hello, Margaret Roberts is my name.

ASSISTANT: Hello, how may I guide you?

USER: I want to book a ticket to Atlanta, GA - ATL to meet my family friend. Can you please book a ticket from New York, NY - LGA?

ASSISTANT: Sure, may I know your preferable dates to travel?

USER: I will depart on 05/16 and return on 05/18.

ASSISTANT: Do you have any other preferences to be meet?

USER: Yes, I can afford up to 200.

ASSISTANT: Thank you for your details, there is no flight available on your requested dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for contacting us.