You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a ticket from DFW to ORD to attend seminar, can you help me in booking?

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

USER: I am departing on Apr 04 and return on Apr 06.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: My name is Richard Martinez.

ASSISTANT: Let me know your connection limit?

USER: I prefer a connecting flight which departs in afternoon time.

ASSISTANT: Do you have any other requirements?

USER: I do not have any other specifications.

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

USER: Sure, take your time.

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

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.