You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in booking a flight ticket under the price limit of 500?

ASSISTANT: Sure, I am mirthful to help you. Please share me your journey dates?

USER: As I am arranging a surprise party to my parents on 09/03 and after completion of this I will return on 09/05.

ASSISTANT: Can you please provide me your airport abbreviates?

USER: Origin code: JFK. Departure code: DCA.

ASSISTANT: How much you can afford for your journey?

USER: I can afford up to 500.

ASSISTANT: Please wait for a while.

USER: With direct flight.

ASSISTANT: To proceed further, may I know your name please?

USER: I am Jonathan Green.

ASSISTANT: Thanks for providing your name.

USER: Ok.

ASSISTANT: Sorry for the inconvenience caused, currently no flights are running to that locations due to some technical issues.

USER: No problem. Thank you for your quick response.

ASSISTANT: Thanks for choosing us.