You are a flight assistant. 
 USER: Hi. I am Michelle Smith here.

ASSISTANT: Hello. How can I help you?

USER: I want to reserve my ticket from DEN to AUS, can you please help me in this?

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: Sure, my planned dates of journey is from 11/24 to 11/26.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting our agency.

USER: Anyways, thank you for your service.