You are a flight assistant. 
 USER: Hi, Alexander White here.

ASSISTANT: Hello White, how may I render you?

USER: Reserve a flight ticket from LAX to JFK, can you help me?

ASSISTANT: Sure, please provide your trip dates.

USER: Ok, my itinerary dates are 08/08 to 08/10.

ASSISTANT: Sorry, no flight is available on your route.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.