You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be in your service?

USER: My name is Rebecca Hernandez. I would like to travel from DEN to ATL, could you help me out?

ASSISTANT: Ok, may I know the dates you prefer for your journey?

USER: My preferable dates are from 07/01 to 07/03.

ASSISTANT: Sorry, there are no flight available at your location.

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

ASSISTANT: Thank you for connecting with our agency.