You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: As I am a scientist, I want to attend science festival with my students at Washington. Can you do the reservation?

ASSISTANT: Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: May I know your source and destination airport codes?

USER: My airport codes are DTW-IAD.

ASSISTANT: When are you planning to make your journey possible?

USER: My trip dates are 06/10 and 06/12.

ASSISTANT: Please let me know your connection limit.

USER: I need break in my journey.

ASSISTANT: Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: Departure time should be afternoon.

ASSISTANT: Before check with the airlines, may I know your name please?

USER: Samuel Thompson here.

ASSISTANT: Give me a minute.

USER: Ok.

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

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for opting us.