You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me in booking my ticket from MSP to PHL?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are from 05/17 to 05/19.

ASSISTANT: Ok, could I have your name please?

USER: Myself Anthony Collins.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a single connecting flight.

ASSISTANT: Ok, may I know your class preference?

USER: I can adjust in any of the class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome, have a great day.