You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to attend my friend's wedding anniversary, please help me in booking a ticket.

ASSISTANT: Sure, help me with the travelling dates.

USER: My travelling dates are from 08/01 to 08/03.

ASSISTANT: Do you have any specifications?

USER: I need 1 connection limit.

ASSISTANT: Can you share your airport codes?

USER: Sure, my airport codes are from IAD to DTW.

ASSISTANT: May I know your name?

USER: My name is Brian Martinez.

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us.