You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Justin Mitchell Here. I am planning to visit a trip in Los Angeles with my friends. Can you please help me a booking a flight ticket from IAH to LAK?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My planned travel dates are from 06/17 to 06/19.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Can you please confirm your destination code?

USER: My destination code is LAX.

ASSISTANT: Sorry to say, no flight is available for you.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Anyway, thank you for the information.