You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: can you help me to book a ticket from BOS to IAH?

ASSISTANT: Sure, let me know your travelling dates.

USER: My trip dates are Mar 25 and Mar 27 respectively.

ASSISTANT: May I know your connection limit?

USER: The connection limit should be 1.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Timothy Lewis.

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

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.