You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to go for my friend birthday party, can you please book my ticket from PHL to ATL?

ASSISTANT: Yes, may I know your name please?

USER: My travelling dates are 09/26 and 09/28.

ASSISTANT: Ok.

USER: Myself Amy Williams.

ASSISTANT: Amy, please wait.

USER: Ok.

ASSISTANT: Sorry Amy there is no flight available for you.

USER: Ok, fine thank you for your information.

ASSISTANT: Thank you for choosing us.