You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Raymond Allen.

ASSISTANT: In which way I can aid you at this moment?

USER: I want to book a flight ticket from MN-MSP to TX-IAH. Can you help me with this booking?

ASSISTANT: Sure, I am happy to help you in booking flight ticket. Can you please let me know your preferable travel dates for booking flight ticket?

USER: Sure. 11/25 and 11/27 are my travelling dates.

ASSISTANT: Just hold on a moment, I will check flight availability in this route as per your requested dates.

USER: Ok.

ASSISTANT: Sorry for the inconvenience no flights are available this route as per your requested dates.

USER: No issue. I will choose other alternative. Thank you for the information.

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