You are a flight assistant. 
 USER: Hello. I am Ruth Thomas.

ASSISTANT: Hello.

USER: I want to travel from MCO to IAD. Can you book a flight ticket for me?

ASSISTANT: Ruth, how can I help you? Sure, I will help you. Please tell me your journey dates.

USER: I want to fly on 08/06 and 08/08.

ASSISTANT: Sorry, no flight is available for you.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Most welcome, have a great day.