You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from DTW?

ASSISTANT: Sure, please mention your planning dates.

USER: I would like to take off on Feb 1 and return on Feb 3.

ASSISTANT: Which type of airline you are looking for?

USER: I am fine with any airline, but I prefer business class.

ASSISTANT: Can you please provide your name to book your ticket?

USER: My name is Edward Gonzalez.

ASSISTANT: What is your max connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other preferences which I can provide for you?

USER: No.

ASSISTANT: Just give me few seconds to fetch flights availability.

USER: Sure, take your time.

ASSISTANT: As per your requirements we didn't found any flights going on your way.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.