You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Jacob Evans.

ASSISTANT: Nice meeting you Jacob.

USER: Can you please reserve a flight ticket for me from SEA to LAS?

ASSISTANT: Sure, may I know your planned dates of travelling?

USER: I want to travel on the dates of 01/12 and 01/14.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: It's ok, thank you for your time.

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