You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you with today?

USER: I would like to visit my friend's marriage which is on 05/11. Can you please help me to book a ticket from PHL to DEN.

ASSISTANT: Sure, I can help you with that. May I know your name to proceed further?

USER: My name is Christine Jones.

ASSISTANT: Thank you for providing. Please allow me a minute to check the details. Christine, can you please help me with your return date?

USER: My preferable dates for travelling are 05/11 and 05/13.

ASSISTANT: OK, let me check that for you.

USER: OK. Make sure that price should not exceed 500.

ASSISTANT: Sure. Christine, there is a flight available with price 100.

USER: That's perfect. Please book the ticket.

ASSISTANT: I have successfully booked the flight ticket for you.Your flight number is 1006 and the airline is AA. Have a great journey.

USER: OK, thank you for your help.

ASSISTANT: You are most welcome.