You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Patricia Parker. Can you please book a flight ticket from ORD to ATL?

ASSISTANT: Sure, please tell me your travelling dates.

USER: Sure, I need to travel on dates of 03/18 and 03/20.

ASSISTANT: Please give me a moment to check.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available on your route.

USER: It's ok fine.

ASSISTANT: Thank you for choosing us.

USER: Anyway, thank you for your time.

ASSISTANT: You are welcome.