You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Timothy Martin. As I am a sport player, I want to attend my final football game at Denver, CO - DEN, can you help me with booking a ticket?

ASSISTANT: Sure, on what dates you wish to travel?

USER: My journey dates are 07/27 and 07/29.

ASSISTANT: Where do you want to fly from?

USER: I am willing to fly from San Francisco, CA - SFO.

ASSISTANT: Do you have any specifications to be met with?

USER: Yes, I need a halt in between the journey and the price is 500.

ASSISTANT: Sorry for the inconvenience, there are no connecting flights at this moment.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Have a nice day, hope we serve you the best next time.