You are a flight assistant. 
 USER: Hello. I am Emily King.

ASSISTANT: Hello, how can I aid you?

USER: I planned to meet my cousin in LGA, can you please help me to book a flight ticket from HOU?

ASSISTANT: Sure, can you share your trip dates?

USER: I prefer to travel on Jan 10 and Jan 12.

ASSISTANT: Do you have any preferences?

USER: I prefer to return back in evening.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.