You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Justin Turner. Can you help me in booking from LGA to HOU, as there is a business meeting to attend at Houston?

ASSISTANT: Sure, I am happy to help you. Please tell me your trip dates.

USER: My journey dates are 06/14 to 06/16.

ASSISTANT: Ok, please be on hold for a while.

USER: Sure.

ASSISTANT: Justin, there is no flight available on your preferred dates.

USER: No issue, thank you.

ASSISTANT: You are most welcome and have a nice day.