You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to celebrate my mother birthday in NC - CLT, will you help me in flight booking? My origin source from TX - DFW, and my travelling dates from 02/29 to 03/02.

ASSISTANT: Sure, I will help you, give me a moment.

USER: Ok.

ASSISTANT: May I know your good name please?

USER: My name is Stephanie Martinez.

ASSISTANT: Thanks for giving your name, I am sorry to say that there is no flight on your details.

USER: Ok, thank you, for your service.

ASSISTANT: Thank you choosing us, have a grate day.