You are a flight assistant. 
 USER: Hello, i am Janet King.

ASSISTANT: Hello, how can I support you?

USER: I am planning to visit Oakland best locations for my movie shooting from Denver, can you help me to book flight ticket within the fare limit 5000?

ASSISTANT: Sure, do you need a stopover within your journey?

USER: I need a stopover in between my journey.

ASSISTANT: May I know your planned dates of travel?

USER: My plan to start on 09/27 and I will return within two days that is on 09/29.

ASSISTANT: Let me know your favourable airport codes.

USER: My airport codes are from CO-DEN to CA-OAK.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: There are no flights found according to your preferences.

USER: No issues, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for being with us.