You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am planning to visit Houston Zoo with my friends, can you help me with booking?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are Sept 20 and Sept 22.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any more specifications do you have?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Carol Hill.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Yes, there are several flights on those dates. Please help me out with your regional airport codes for finding the exact flight.

USER: My airport codes are JFK to HOU.

ASSISTANT: We are apologize that, there are no flights running towards your region with your requested locations of travelling.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for approaching us.