You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Nicole Phillips, I want to book a flight ticket from CLT to ORD.

ASSISTANT: Yes, I will help you with that one. May I know the dates of your journey?

USER: My date of travelling is on 05/02 to 05/04.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: I am sorry, there are no flights obtained when I check in my data base to book your ticket.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for utilising our service, have a nice day.