You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Cynthia Martinez. Please book me a ticket from LAX to OAK as my meeting purpose.

ASSISTANT: Sure, I will help you with that. Can you tell me your travelling dates?

USER: I have planned to travel on 07/14 and 07/16.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.