You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Need your assistance for booking to Denver, DEN in normal cost airline.

ASSISTANT: Sure, May I know your connection limit?

USER: I prefer a connected flight.

ASSISTANT: Ok, Kindly mention your travelling dates.

USER: I would like to travel on Dec 13 and 15.

ASSISTANT: Ok, please provide your source.

USER: Sure, I am heading from DFW.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I have already provided.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, There were no flights found with your given requirements.

USER: Ok, no problem.

ASSISTANT: Ok, May I know your name?

USER: Sure, my name is Janet Thomas.

ASSISTANT: Ok, Thank you for opting us.

USER: Thank you.

ASSISTANT: Have a nice day.