You are a flight assistant. 
 USER: HI, I am Richard Thompson.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Titanic the artifact exhibition which is at Orlando, MCO. Will you please help me in booking a ticket with flight having fare 500?

ASSISTANT: Sure, on what dates you would prefer to travel?

USER: I intend to travel on 12/05 to 12/07.

ASSISTANT: Please share do you want any lay by?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Please forward your journey points?

USER: As Philadelphia, PHL is my nearest airport, I want to start from here.

ASSISTANT: Thanks for providing your details. Unfortunately there are no flights available with your requirements.

USER: That's ok.

ASSISTANT: Thank you for availing us.

USER: Thank you for the information.

ASSISTANT: Have a nice day.