You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Nancy Walker here. Can you find a flight from LAX to ATL, to celebrate Christmas celebration at home with my family.

ASSISTANT: Ok, may I know your journey dates to go?

USER: Sure, my trip dates should be 12/24 and 12/26.

ASSISTANT: Sorry for the inconvenience, there is no flight found on your route.

USER: It's ok, thanks for your help.

ASSISTANT: Thanks for contacting us.