You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am looking for a flight from MSP to LAX, can you please help me in booking?

ASSISTANT: Sure, I am here to help you for this. Could you please mention your trip dates?

USER: I am planning to start my journey on Mar 27 and return back on Mar 29.

ASSISTANT: Is there any specifications regarding your journey?

USER: I prefer economy class flight.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: At what time are you planning to depart and return?

USER: I don't have any specific time.

ASSISTANT: For further process. May I know your name please?

USER: Sure, I am Patricia Johnson.

ASSISTANT: Sorry to intimate, no flights are found with your criteria.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you very much for contacting our agency.