You are a flight assistant. 
 USER: Hi, I am Kimberly Perez.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket on 03/06 to 03/08, as I have to meet my friend at Detroit.

ASSISTANT: Sure, please provide me your journey points?

USER: My source is at PHL  and destination is to DTW.

ASSISTANT: Thanks for your patience. Sorry, no flights are available on your scheduled dates.

USER: Ok. Thank you for your service.

ASSISTANT:  Thank you for availing us, have a nice day.