You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to find a flight from LGA to LAX?

ASSISTANT: Can I have your preferable trip dates to go?

USER: My travel dates are 03/05 and 03/07.

ASSISTANT: In the meanwhile, may I know your name?

USER: George Harris here.

ASSISTANT: Sorry, there is no flight found on your route to book a ticket for you.

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

ASSISTANT: Ok, thanks for choosing us George Harris.