You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Jeffery Miller. I would like to book a ticket from LAS to MSP, can you please help me out?

ASSISTANT: Sure, may I know your airlines preference?

USER: I don't have any preferences?

ASSISTANT: Ok, can you please tell me your travel dates?

USER: I am travelling on these dates April 5th and 7th.

ASSISTANT: Please share your return and depart timings.

USER: I need return time in the evening.

ASSISTANT: Ok, which flight do you prefer either a direct flight or a connecting flight?

USER: I need a single connected flight.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry to intimate you that, there is no flight which is returning in the evening time on the dates you have given.

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

ASSISTANT: You are welcome. Thank you for opting us.