You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you today?

USER: As I am a scientist, I want to attend science festival with my students at Phoenix. Can you help me?

ASSISTANT: Sure, we are mirthful to help you. Let me know your source point and return date?

USER: My source point is OAK and return date is 11/01.

ASSISTANT: Do you need a stopover in between your journey?

USER: No, I need direct flight.

ASSISTANT: Can you share me destination point please?

USER: Destination point is PHX and Start date is 10/30.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey. May I know your name for documentation purpose?

USER: No problem, Thank you. Jacob Robinson here.

ASSISTANT: Thank you for reaching us.