You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from SFO to LAX. Could you book a ticket?

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

USER: Departure is by June, 28 and return date is June, 30.

ASSISTANT: Are you looking for any preferred connections?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Can I have your name to proceed further?

USER: My name is Andrew Thomas.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Thank you.

ASSISTANT: Thank you for reaching us.