You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I want to travel from PHL to DEN. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know when you are planning to travel?

USER: I want to fly in the flight on Sept 04 and Sept 06.

ASSISTANT: Can you please share me your name?

USER: Michael Baker.

ASSISTANT: Kindly mention your connection limit?

USER: I want to have a connection of 1.

ASSISTANT: Do you have any other requirements?

USER: I prefer to travel in business class.

ASSISTANT: There is no flights found with your matching information.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for opting us.