You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Michael Clark. Could you please help me in flight ticket booking process from MSP to IAH?

ASSISTANT: Sure, can I know your travelling dates?

USER: Thank you for your response, I want to take off on Jan 04 and book my return ticket also on Jan 06.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I want to take off in evening time.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I want travel in connecting flight.

ASSISTANT: Which class do you prefer?

USER: I am ok with any class.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.