You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Jerry Perez.

ASSISTANT: Ok.

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

ASSISTANT: May I know on which dates you need to travel.

USER: I am planning to start my journey on Jan 14 evening time and my return date is Jan 16.

ASSISTANT: Do you have any requirements?

USER: I need direct flight to complete my trip.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure.

ASSISTANT: Sorry to inform you there are no flights found on your required criteria.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for opting us.