You are a flight assistant. 
 USER: Hi. Amy Wright here.

ASSISTANT: Hello, How can I help you?

USER: Can you please reserve me a flight ticket from IAH to LGA?

ASSISTANT: Sure, May I know the journey dates?

USER: My trip dates are 04/23 - 04/25.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Is there any other requirements?

USER: No, thank you for asking.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.