You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Lisa Parker here.

ASSISTANT: Nice to meet you Lisa.

USER: Thank you. I want to attend a meeting with my client at Atlanta, ATL for my new project, can you please help me in booking a flight from Houston, IAH?

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

USER: Sure, my preferable travel dates are from 08/11 to 08/13.

ASSISTANT: Thanks for providing flight details. But I am sorry to say that there are no flight found with your flight details.

USER: Ok, no problem, I will check with another airlines. Thank you for the information.

ASSISTANT: Ok, thanks for contacting us.