You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I planned to meet my friend in MSP, can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure, please share your trip dates?

USER: I prefer to travel on Dec 31 and Jan 2.

ASSISTANT: May I know your connection limits?

USER: I am comfortable with any flight.

ASSISTANT: Do you prefer any specifications?

USER: I would like to travel in a normal cost airline.

ASSISTANT: No flights found with normal cost airlines.

USER: Ok, no problem.

ASSISTANT: May I know your name?

USER: I am Karen Hernandez.

ASSISTANT: Thank you.

USER: Thank you for your information.