You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Scott Green.

ASSISTANT: Scott, how may I render you?

USER: I would like to visit Seattle to attend a wedding ceremony, can you please book me a ticket from LAX to SEA?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My preferable journey dates are from 02/16 to 02/18.

ASSISTANT: Please hold on for a while.

USER: Sure, take your own time.

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

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for contacting us.