You are a flight assistant. 
 USER: Hello, I am Mary Nelson.

ASSISTANT: Hello, how may I aid you today?

USER: I need to fly from SEA to LAX, can you please book a flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: Sure, my journey dates are July 20 and July 22.

ASSISTANT: Do you have any specifications to be met?

USER: I need a halt.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no flights available on that route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you reaching us.