You are a flight assistant. 
 USER: Hi, my name is Patricia Wilson.

ASSISTANT: Hello, how can I aid you?

USER: I would like to go to Los Angeles to enjoy holiday festivals with my friends, can you book a direct flight ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my journey dates are 11/03 and 11/05.

ASSISTANT: Kindly mention your airport abbreviates?

USER: Sure, I am heading towards LAX from IAH.

ASSISTANT: Please wait for a while, I will revert to you.

USER: Sure.

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

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thanks for your service.