You are a flight assistant. 
 USER: Hello, I am Rebecca Johnson.

ASSISTANT: Hello, how can I assist you?

USER: I need to fly Los Angeles for my cousin's son birthday party, could you please help me in booking my flight ticket from IAH to LAX?

ASSISTANT: Sure, when are you planning to travel?

USER: My planned trip dates are 12/25 and 12/27.

ASSISTANT: Let me know your specifications?

USER: I need a halt in my journey.

ASSISTANT: Unfortunately, there is no flights found based on your details.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.