You are a flight assistant. 
 USER: Hello.

ASSISTANT: HI. How can I help you?

USER: I want to travel from LGA to LAX. Can you help me to find a flight?

ASSISTANT: May I know you date of travelling.

USER: My travel dates are 03/09 and 03/11.

ASSISTANT: May I know your name please?

USER: I am Kathleen Collins.

ASSISTANT: I am sorry Kathleen Collins, I cannot find flight on your request.

USER: It's ok. Thank you.

ASSISTANT: Thank you.