You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Christine Jones and I want to book a flight to surprise my girlfriend on her birthday at Charlotte, NC-CLT from Philadelphia, PA-PHL. Can you help me?

ASSISTANT: Sure, Do you have any price limit?

USER: I need the ticket with in the price limit 500.

ASSISTANT: May I Know your travelling dates?

USER: My travelling dates would be on 05/11 to 05/13.

ASSISTANT: Do you have any connection limit?

USER: I need one connection.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We found a UA airline,flight number:1027 and the price is 100.

USER: You can go ahead.

ASSISTANT: Your flight ticket has been processed.

USER: Thanks for your response.

ASSISTANT: Thank you for consulting us.