You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Samuel Davis here. I want to attend my convocation ceremony, so please book my ticket from JFK to HOU.

ASSISTANT: Sure, let me know your travelling dates.

USER: My itinerary dates are Feb 12 and Feb 14.

ASSISTANT: Please share your specifications.

USER: I can afford 200 for my ticket and I need a connecting flight.

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

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.