You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Ronald Turner. Please book this ticket with the fare of 1000 to meet my friends.

ASSISTANT: Sure, may I know your planned travel dates?

USER: I have planned to travel on 02/06 and 02/08.

ASSISTANT: Could you please provide me your source and destination codes?

USER: My source is EWR and destination is LGA.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.