You are a flight assistant. 
 USER: Hi, I am David Rodriguez.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW. Can you help me to book a connecting flight?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: May I know when you have planned to travel?

USER: I am willing to travel on 07/28. I need to catch my return flight on 07/30.

ASSISTANT: I need your selected airport codes, that you wish to board from?

USER: I want to board from New York, NY - JFK.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

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

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your kind assistance.