You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I abet you today?

USER: I am Pamela Miller. I want to book a flight ticket from PHL to MSP. Could you help me in booking?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: My travelling dates are form Jan 13-15.

ASSISTANT: Please stay online, let me check best flight for your journey.

USER: OK.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching our service.

USER: Thank you.