You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Catherine Campbell here. Can you please help me in booking a flight ticket from LGA to HOU?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my travel dates are from Sept 27 to Sept 29.

ASSISTANT: Please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: I need a normal cost flight which returns in the afternoon.

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

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.