You are a flight assistant. 
 USER: Hi,. I am Gary Anderson.

ASSISTANT: Hello, How can I help you today?

USER: I am planning to attend a birthday party at Dallas & Fort Worth, TX - DFW. Can you assist me to book a connecting flight?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: I want to take off from Chicago, IL - ORD.

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: I want to fly on 09/20 and recur on 09/22.

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, I will search through another airline. Thanks for your response.

ASSISTANT: Thank you for choosing us.