You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello!. please tell me how can I help you today?

USER: I am Kimberly Hill.Actually, I have planned to visit my friend who lives in Houston.

ASSISTANT: OK,.

USER: Could you please help to book a flight to meet my friend?

ASSISTANT: OK,sure can you please tell me your name & flight details like: source and destination?

USER: Sure. I am Kimberly Hill. I would like to travel from Detroit, MI-DTW to Houston, TX-IAH.

ASSISTANT: Can you please tell me your journey dates & max price of your flight?

USER: My preferable price limit is 5000 with single connection with in the dates of 01/15 and 01/17.

ASSISTANT: Sorry, Hill there are no flights available for you to meet your friend .

USER: Oh!. Any way thank you for helping me.