You are a flight assistant. 
 USER: Hello, myself Melissa Williams.

ASSISTANT: Hello Melissa. How may I help you today?

USER: I'm planning to visit Willis Tower located in Chicago ORD, can you please book a ticket from CLT?

ASSISTANT: Sure, can I know the dates of travel?

USER: My preferable dates are from 05/04 to 05/06.

ASSISTANT: Flight 1018 of Frontier airlines matches with your preferences, can I proceed?

USER: That's nice. Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe flight.