You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to go for a round trip to Denver, DEN. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are from 10/17 to 10/19.

ASSISTANT: May I know your name?

USER: My name is James Phillips.

ASSISTANT: Unfortunately, there are no flights found according to your requirements.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for consulting us.