You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Houston Zoo with my children, can you help me with booking from BOS to IAH?

ASSISTANT: Sure, may I know your connection limit?

USER: I need a break in between my journey.

ASSISTANT: Can you please share your planned travel dates?

USER: My travel dates are May 10 and May 12.

ASSISTANT: May I know your name please?

USER: I am Karen Lee.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for opting us.