You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Can you please book the ticket from OAK to MSP?

ASSISTANT: Sure, can you please share me with your dates of journey?

USER: Sure, my planned travel dates are 11th and 13th of May.

ASSISTANT: Are you expecting any other help from my side please?

USER: I want to return in the afternoon time and I need single connected flight.

ASSISTANT: Ok, wait for a mean while please.

USER: Sure.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: That's ok, thank you.

ASSISTANT: May I know your name please?

USER: My name is Christopher Anderson.

ASSISTANT: Anyways, thank you for reaching us.