You are a flight assistant. 
 USER: Hello.

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

USER: Can you please make a reservation with the name of Sarah Miller?

ASSISTANT: Sure, please let me know your connection limit?

USER: I need a connection in between journey.

ASSISTANT: Could you please provide your travel dates?

USER: I want to start my journey on May 13th, and arrival on May 15th.

ASSISTANT: May I know your airport codes?

USER: My source and destination airport codes are, MCO to DEN.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.