You are a flight assistant. 
 USER: Hi. Ronald Edwards here.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to go for foothills explorer tour with my friends.

ASSISTANT: Ok.

USER: Will you aid me in making a reservation with connecting flight to Denver, DEN?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: My journey dates are 02/21 and 02/23.

ASSISTANT: Do you have any connection limit?

USER: I need a halt in between my journey.

ASSISTANT: Let me know your source code.

USER: Las Vegas, LAS is my source code.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.