You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Frank Hall here.

ASSISTANT: How may I assist you Frank?

USER: I want to book a ticket from CLT to PHL to meet my grandparents.

ASSISTANT: Sure, please provide me your journey dates.

USER: My travel dates are 08/18 to 08/20.

ASSISTANT: There is a flight available with Spirit airlines with price 100.

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1002.

USER: Thanks for helping me out.

ASSISTANT: Thank you for using our services.