You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how can I best oblige you now?

USER: Me and my friend have planned to visit Children's Museum of Denver, can you help me with booking a direct flight?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, share your starting journey date.

USER: I will start my journey on 10/29.

ASSISTANT: Kindly, mention your source airport code.

USER: I will fly from LAS to DEN.

ASSISTANT: When you will return to LAS?

USER: I intend to return on 10/31.

ASSISTANT: No flights found on your journey locations.

USER: That's ok.

ASSISTANT: May I know your good name?

USER: I am Brian Collins.

ASSISTANT: Thank you for choosing us, hope we serve you again.

USER: Thank you.