You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I am planning to visit the Cockerel butterfly centre which is located in Houston, IAH.

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: Can you avail me to book a flight ticket from Atlanta? My journey dates are Nov 05 and 07.

ASSISTANT: May I know your source airport code please?

USER: My source is from Atlanta, ATL.

ASSISTANT: Are you looking for any other help from my side please?

USER: I want to depart in the afternoon time.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: Ok, no issues.

ASSISTANT: May I know your name please?

USER: Matthew Young. Thanks for the information.

ASSISTANT: You are welcome.