You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from OAK to PHX, can you please help me?

ASSISTANT: Sure, do you need a connecting or direct flight?

USER: I need a single connection in between journey.

ASSISTANT: Could you please share your planned travel dates?

USER: My travelling dates are on May 26 and May 28.

ASSISTANT: Do you have any more specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Frank Taylor.

ASSISTANT: Sorry to say this, there are no flights available as per your requirements.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.