You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I am Linda Phillips. Please book me a ticket from LGA to EWR to meet my family.

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I have planned to travel on 09/04 and 09/06.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Ok.

ASSISTANT: Sorry Linda Phillips, no flight is available to you on your dates.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a good day.