You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me in booking my flight ticket from MSP to IAH?

ASSISTANT: Sure, let me know your travelling dates.

USER: My trip dates will be Apr 21st and Apr 23rd.

ASSISTANT: Please share your connection limit.

USER: I prefer a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Susan Young.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us.