You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Brandon Collins. I am planning to attend a meeting at Charlotte on 06/15 and return on 06/17, so can you help me with booking flight from Philadelphia?

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

USER: Yes, my airport codes are PA-PHL and NC-CLT.

ASSISTANT: Do you need a lay by?

USER: Yes, I need a connecting flight.

ASSISTANT: There is an Delta airline with flight number 1007 and price of 100 available on your required dates. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.