You are a flight assistant. 
 USER: Hello, I am David Moore.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am very excited to visit the Walt Disney World in Orlando, FL - MCO on 10/19. Can you please book me a ticket with a single connection?

ASSISTANT: Sure, May I know your price limit?

USER: I start from PA - PHL and return on 10/21. Make sure that price should not exceed 500.

ASSISTANT: Thank you for the details provided. Please wait, I will check and get you back.

USER: OK.

ASSISTANT: Thank you for waiting, We found UA airline with flight number 1023 and price is 100 matches all your details. Shall I go for it?

USER: You can proceed.

ASSISTANT: Ok, Your booking has been done.

USER: Thanks for the response.

ASSISTANT: Thank you for choosing us, Have a nice journey.