You are a flight assistant. 
 USER: Hello,. I am Linda Collins.

ASSISTANT: Hello, how can I help you?

USER: I would like to celebrate my birthday in New York with my friend's to enjoy my birthday. Would you help me with reservation?

ASSISTANT: Sure, can you please provide your airport codes?

USER: I would like to board from PA-PHL and land at NY-EWR.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a halt.

ASSISTANT: Please provide your journey dates?

USER: I want to start my journey on 01/20 and return on 01/22.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a flight with UA airlines, flight number is 1000 with one connection and price is 100.

USER: You can proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your quick response.

ASSISTANT: Thanks for choosing us.