You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello, I am Robert Davis.

ASSISTANT: How may I help you today?

USER: I need to book a direct flight to attend my cousin wedding at New York.

ASSISTANT: Ok.

USER: Can you please book a ticket with price 5000?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 04/10 and 04/12.

ASSISTANT: What are your source and destination?

USER: My source is Los Angeles, CA - LAX. My destination is NY - LGA.

ASSISTANT: Sorry to inform that no flights are available with your specified details.

USER: Ok, no issues.

ASSISTANT: Thanks for availing us, have a nice day.

USER: Thank you for your service.