You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Please help me in booking flight ticket from IAH to MSP.

ASSISTANT: Sure, I will help you. May I know your planned trip dates please?

USER: My trip dates are May 09 to May 11.

ASSISTANT: Can I have your good name please?

USER: Emily Harris here.

ASSISTANT: Do you have any connection preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to fly in economy class.

ASSISTANT: Emily Harris, no flights has been found on your trip dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.