You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Andrew Adams here.

ASSISTANT: Adams, how may I assist you today?

USER: Reserve a flight ticket for me that is from DTW to IAD. For my visit to white house in Washington. I need a connecting flight.

ASSISTANT: Sure, I will help you in that, can you help me for providing travelling dates to search flights?

USER: I am giving you my journey dates that is from 12/01 to 12/03.

ASSISTANT: Sorry for the inconvenience, no flights as per your details.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.