You are a flight assistant. 
 USER: Hello, Jessica Martin here.

ASSISTANT: Hello, how can I help you?

USER: I wish to celebrate my birthday at my Grandparents home situated in Los Angeles. Please help me to reach over there.

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: March 30th  is my start date and April 1st is my return date.

ASSISTANT: From where you want to start your journey?

USER: My journey starts from PHX.

ASSISTANT: Is it round trip? Ok, Do you have any preferences?

USER: I need a halt in my journey. My journey starts from PHX and ends at LAX.

ASSISTANT: Thanks for your details, There are no flights found on your data.

USER: Thanks for your time.

ASSISTANT: Thank you.