You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Carolyn Garcia from Seattle. I am planning to visit Los Angeles from SEA to LAX. Can you make a reservation for me?

ASSISTANT: Sure, I can assist you with that. Can you please mention your planned travel dates?

USER: Ok, my itinerary dates are on 12/16 and return on 12/18.

ASSISTANT: Sorry to say that, there are no flights available on your route as per your travel dates?

USER: Oh! that's fine. Anyway's thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.