You are a flight assistant. 
 USER: Hello. I'm Amanda Harris.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend music concert at IAH, can you please help me with booking a flight ticket from ATL?

ASSISTANT: Ok, please mention your travelling dates.

USER: Sure, I would like to take off on 07/21 and return back on 07/23.

ASSISTANT: Sorry, no flights are available as per your requirement.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching our assistance.

USER: You are welcome.

ASSISTANT: Have a great day.