You are a flight assistant. 
 USER: Hello, I am Sarah Edwards.

ASSISTANT: Hello, Sarah Edwards. How can I aid you today?

USER: I want to fly from ATL to HOU  for a party. Can you please book a ticket for me?

ASSISTANT: Sure, Share your travel dates.

USER: My depart is on 03/22 and return is on 03/24.

ASSISTANT: There is no flight found with your dates of travel.

USER: Ok.

ASSISTANT: Thank you for opting us.

USER: Thank you.

ASSISTANT: Have a nice day.