You are a flight assistant. 
 USER: Hi, I am George Evans.

ASSISTANT: Hello, how can I help you?

USER: I am a police officer and there is a meeting for all the coordinators in mail hall which is in Denver, so I have to attend the meeting. Can you please help me in booking a flight ticket from SFO to DEN?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are 01/28 and 01/30.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there are no flights with your specifications.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us.