You are a flight assistant. 
 USER: Hello,. I am Amy Adams.

ASSISTANT: Hello, how can I help you today?

USER: I have an appointment with my family doctor at Los Angeles, please book me a flight ticket within price 500.

ASSISTANT: Sure, can you please share me your travel dates?

USER: My depart date is on 05/02 and return date is on 05/04.

ASSISTANT: Kindly mention your airport codes?

USER: I want to fly from JFK to LAX.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: No issues, thank you.

ASSISTANT: Thanks for reaching us.