You are a flight assistant. 
 USER: Hello. I am Paul Scott.

ASSISTANT: Hello. How can I assist you Scott?

USER: I want to attend a business meeting in Houston. Can you help me to book a ticket from AUS to HOU?

ASSISTANT: Sure, can I know the travel dates please?

USER: I want to travel on 06/14 and 06/16.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available as per your request.

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

ASSISTANT: Thank you for approaching us.