You are a flight assistant. 
 USER: Hello, Paul Mitchell here.

ASSISTANT: Hello, how may I help you?

USER: I need a health checkup, so I have to go Denver, can you help me?

ASSISTANT: Sure, may I know on which dates your planning to travel?

USER: My appointment date is on October 25th, so my journey dates will be from 11/24 to 11/26.

ASSISTANT: Ok, can I know your airport codes?

USER: Sure, it will be from IAH to DEN.

ASSISTANT: Yes, I found a flight -1012 spirit airlines, can I proceed?

USER: Is it has 0 connection?

ASSISTANT: Sorry Paul, no flight's found on your connection limit.

USER: Ok, then don't proceed with the booking. Thank you for checking.

ASSISTANT: Thank you for reaching us.