You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you with?

USER: Myself Rebecca Adams here. I would like to travel with my family member in my vacation days, can you please help me to book a ticket from DEN to MSP?

ASSISTANT: Can you help me out with your travelling dates for a better search?

USER: Sure, It is from 05/09 to 05/11.

ASSISTANT: Thank you for your details, please hold on.

USER: Sure.

ASSISTANT: Thank you for holding. Sorry, there is no airline is providing a flight as per your details.

USER: Oh! It sounds bad for me. Anyways, thank you for your help.

ASSISTANT: Thank you for choosing us, have a good day.