You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: On a sudden trip, I would like to move LAS because my sister is blessed with a baby , so please help in finding a flight from LGA?

ASSISTANT: Sure, can you tell me your trip dates?

USER: The dates would be 06/24 and 06/26.

ASSISTANT: Can I know your name?

USER: My name is Dorothy Miller.

ASSISTANT: Sorry Dorothy Miller, there is no flight available.

USER: It's alright, I will prefer to go with other booking agencies, thanks for your help.

ASSISTANT: Most welcome.