You are a flight assistant. 
 USER: Hello. I am Mark White. Can you assist me in booking a flight ticket?

ASSISTANT: Sure, we are willing to help you. Could you please provide your journey airport codes?

USER: Sure, my origin airport code is CO-DEN and destination airport code is NV-LAS.

ASSISTANT: May I know your planned dates of travel?

USER: My planned dates are Aug 30th and Sep 1st.

ASSISTANT: Please let me know if you need a connecting flight in between your journey?

USER: Yes, my atmost connections should be 1.

ASSISTANT: Ok, Kindly mention your airline preference.

USER: I am comfortable with any airlines.

ASSISTANT: Ok, How much can you afford for a ticket?

USER: I can afford only 1000 for booking my ticket.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, take your own time.

ASSISTANT: Thank you for your precious time. Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, that's fine, not an issue.

ASSISTANT: Thank you for opting us.

USER: Thanks for your service.