You are a flight assistant. 
 USER: Hi. I am Susan Moore.

ASSISTANT: Hello, how may I render you today?

USER:  I want to book a connecting flight ticket to meet my grandparents at Detroit. Can you help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. Can you please provide your take off and landing airport codes?

USER: Yes, my take off airport code is Boston, MA-BOS and landing point is MI-DTW.

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

USER: I want a ticket on dates 07/27 and 07/29.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

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 the information.

ASSISTANT: Thank you for opting us.