You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to book a ticket from SFO to IAH. Can you please help me out?

ASSISTANT: Sure, can I know your travelling dates?

USER: I am planning to travel on Feb 05 and return back on Feb 07.

ASSISTANT: On which name should I reserve the flight ticket?

USER: My name is Dorothy Perez.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I am looking for a business class.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for reaching us.