You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Perez.

ASSISTANT: How may I guide you today?

USER: I want to travel from DTW to DCA. Can you book a flight ticket for me?

ASSISTANT: Sure, can you share your travel dates?

USER: I want to travel in the flight on July 16 and July 18.

ASSISTANT: Let me know your depart and return time?

USER: I want to depart in morning time and return in afternoon time.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there is no flight on your required details.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for connecting with us.