You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Kathleen Gonzalez here. I want to book a ticket from ATL to OAK. Can you check the flight availability on this root/.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My planned travelling dates are 07/22 and 07/24.

ASSISTANT: Do you have any specifications?

USER: I want a flight with maximum connection of 1.

ASSISTANT: Do you have any other specifications?

USER: Make sure that, my return time should be in evening only.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: No issues, thank you for the information.

ASSISTANT: Welcome, have a great day.