You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am looking for a flight from LAX to EWR, can you help me in booking?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, my planned travel dates are May 03 and May 05.

ASSISTANT: Do you have any preferences?

USER: Actually, I am looking for a direct flight.

ASSISTANT: Please stay connected, I am working on it.

USER: Ok, I would like to return my journey for the evening flight.

ASSISTANT: Sorry, there is no flight available with your requirements.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: May I know your name?

USER: Myself Kathleen Roberts.

ASSISTANT: Thank you for reaching us.