You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Will you please book me a flight ticket from LGA to EWR?

ASSISTANT: Sure, please share your journey dates?

USER: I will leave on Oct 27th and return on Oct 29th.

ASSISTANT: Do you have any specifications?

USER: I need 1 lay by within my route.

ASSISTANT: Is there any class preference?

USER: I am fine with any class.

ASSISTANT: May I know your good name?

USER: I am Stephen Gonzalez.

ASSISTANT: Sorry, no flights found on your given details.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for choosing us.