You are a flight assistant. 
 USER: Hello, myself Michelle Jones.

ASSISTANT: Hello, how may I aid you for the day?

USER: I want you to book my flight ticket from SFO to ATL, can you please do that for me?

ASSISTANT: Michelle Jones, may I know your travelling dates please?

USER: I want to depart on 05/12 and return on 05/14.

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

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us. Have a nice day.