You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Nancy Perez.

ASSISTANT: Yes, Nancy how can I assist you?

USER: I want to book a ticket from LGA to SEA.

ASSISTANT: OK. Can I know your travel dates?

USER: The journey dates are from 11/17 to 11/19.

ASSISTANT: Do you have any other requirements?

USER: Price and connection limit should be 500 and 1.

ASSISTANT: Sorry Nancy there are no flights on your mentioned dates? Dates. Thank you for choosing us.