You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Jessica Wilson.

ASSISTANT: How may I assist you?

USER: I need to book a flight ticket from NY-LGA to PA-PHL, Can you help me for booking a flight ticket please?

ASSISTANT: Yes. May I know your departure date?

USER: I would like to travel on 05/27 to 05/29.

ASSISTANT: Any ticket price limit?

USER: I need price limit with in 1000.

ASSISTANT: There are no flights available with your requirements.

USER: Ok, no problem.

ASSISTANT: Thanks.

USER: Thanks for your information.