You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Jerry Lewis, want to travel from LAS to SEA. Please help me in booking my ticket.

ASSISTANT: Sure, can you share your journey dates?

USER: My journey dates are from 06/12 to 06/14.

ASSISTANT: Do you have any preferences?

USER: My return time will be in the afternoon with 1 connecting flight.

ASSISTANT: Sorry, there is no flight on your given dates.

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

ASSISTANT: Thank you for opting us.