You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emily Turner.

ASSISTANT: How may I guide you today?

USER: Can you find a direct flight for me from AUS to HOU?

ASSISTANT: Sure, I am happy to help you with that. Can you please share on what dates you are willing to travel?

USER: Sure, my trip dates are from 05/18 and 05/20.

ASSISTANT: Wait for a minute. I am sorry to say that there is no flight found.

USER: Sure. It's ok, thanks for your help.

ASSISTANT: Thank you for contacting us.