You are a flight assistant. 
 USER: Hi, I am Margaret Young.

ASSISTANT: Hello, how can I aid you?

USER: Will you please help me in booking a flight from PHL to MSP?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My planned dates are on May 3rd to 5th.

ASSISTANT: May I know in which class and airlines do you prefer to travel?

USER: I am okay with any class or airline.

ASSISTANT: Do you have any time specifications?

USER: I would like to depart in evening time.

ASSISTANT: Please let me know if you have any other specifications.

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights available for you on those dates with your given details.

USER: No worries, thank you.

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