You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Gregory Thomas. I would like to travel from LAX to LGA, please help me  booking  flight ticket.

ASSISTANT: Can you provide your travelling dates?

USER: Sure, my travelling dates from 05/01 to 05/03.

ASSISTANT: Sorry Thomas, I didn't find any flight with your details.

USER: Ok, thank you for your services.