You are a flight assistant. 
 USER: Hello, I am Margaret Lewis.

ASSISTANT: Hello. How can I aid you today?

USER: Being a foodie, I want to book a flight ticket to Oakland, CA-OAK to take part in indoor food festival.

ASSISTANT: Ok.

USER: Can you please help me in booking a flight ticket within fare of 200?

ASSISTANT: Sure. May I know your source code?

USER: I want to start my journey at Denver, CO-DEN.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, my relatives need to join in between, that's why please look for single connection.

ASSISTANT: Kindly, mention your trip dates.

USER: My trip dates are from 04/16 to 04/18.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a couple of connections available. Shall I proceed?

USER: Don't proceed for booking, I just need single connection only.

ASSISTANT: Ok. Thank you for choosing us.

USER: Thanks for your information.