You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Myself Kimberly Garcia from Denver. Could you please help me in flight ticket booking process from DEN to DFW?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Thank you for your response, I want to take off on May 15 and please confirm my return ticket also on May 17.

ASSISTANT: Noted. Do you have any preferences?

USER: Yes, I want 1 halt in between my journey.

ASSISTANT: Sorry, there is no flight available on your journey dates.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: You are welcome, have a nice day.