You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is Rebecca Harris, can you help me to book a flight ticket from LAX to SEA?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Ok, please book for the dates Dec 12 and Dec 14.

ASSISTANT: Do you need a halt in between your journey?

USER: Ok, please book a direct flight.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, please book a airlines of normal-cost.

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

USER: Thank you for assisting me, I will book next week.

ASSISTANT: Thank you for reaching us.