You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Samantha Thompson here. I am looking a flight from ORD to HOU, can you help me?

ASSISTANT: Sure, may I know your trip dates please?

USER: I would like to travel on 06 Mar and return on 08 Mar.

ASSISTANT: Please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting and sorry, we regret to inform you that there is no flight available as per your request.

USER: It's ok, thank you for giving information.

ASSISTANT: My pleasure.