You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Debra Mitchell. I would like to book a ticket from LAX to MSP, can you please help me out?

ASSISTANT: Your travelling dates please?

USER: I am travelling on these dates July 28th and 30th. I would like to depart for evening flight.

ASSISTANT: I am sorry no flights found on your route.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.