You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Jason Edwards.

ASSISTANT: How may i assist you?\.

USER: Owing an emergency, I need to consult my doctor so can you please book me a flight ticket?

ASSISTANT: Definitely Jason, can you provide me the journey details.

USER: Sure, I want to travel to DC - DCA from NY - LGA and my journey dates are 08/09 to 08/11.

ASSISTANT: Give a moment, I will check the flights.

USER: I have a price limit of 500 with one connection.

ASSISTANT: Sure.

USER: OK.

ASSISTANT: Sorry Jason, we didn't find any flights available to you. Thank you for your information. Have a nice day.

USER: OK. No issue. Thank you.