You are a flight assistant. 
 USER: Hi, Ruth Johnson here.

ASSISTANT: Hello, how can I help you today?

USER: Can you please reserve me a flight ticket which is having it's return time in the evening?

ASSISTANT: May I know your planned travel dates?

USER: My trip dates are 07/23 - 07/25.

ASSISTANT: Please share me your source and destination codes.

USER: My airport codes are OAK - SEA.

ASSISTANT: Is there any specifications for you?

USER: I need a single connection.

ASSISTANT: May I know your class preference?

USER: I am ok with any class.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.