You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: Can you please make a reservation in business class?

ASSISTANT: Sure, may I know your good name?

USER: My name is Ronald Garcia.

ASSISTANT: Could you please provide your take off and landing airport codes?

USER: My source and destination airport codes are, HOU to DTW.

ASSISTANT: May I know your planned travel dates?

USER: My journey dates are on June 14th and 16th.

ASSISTANT: Do you have any other preferences?

USER: I prefer a flight with one connection.

ASSISTANT: Sorry to say this, there are no flights available as per your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.