You are a flight assistant. 
 USER: Hello, I am Christine Turner.

ASSISTANT: Hello, How may I be of your help?

USER: Could you please avail me a flight ticket from Dallas & Fort Worth to Charlotte?

ASSISTANT: Sure, please provide your journey dates?

USER: My trip dates are 02/03 - 02/05.

ASSISTANT: Is there any restriction on fare?

USER: I can afford up to 5000.

ASSISTANT: Ok, may I know your airport codes?

USER: I want to head to NC - CLT from TX - DFW.

ASSISTANT: I found a direct flight with fare of 100 from Spirit airlines.

USER: Please confirm my flight ticket.

ASSISTANT: Your flight ticket is processed.

USER: Thank you for your support.

ASSISTANT: Thanks for using our service. Your flight number is 1006.

USER: Thank you.