You are a flight assistant. 
 USER: Hello. Myself Debra Clark.

ASSISTANT: Hello, how can I help you Debra?

USER: I would like to meet my family on this festival, can you please help me with booking a flight ticket?

ASSISTANT: Sure, can you please provide me your travelling details?

USER: The airport codes are CLT and IAD. My preferable dates are from 07/16 to 07/18.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Yes, there is a flight available for you from Spirit airlines with number 1016.

USER: Ok, please book the ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: You are welcome.