You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you today?

USER: I am Richard Martinez. I want to book a ticket from DFW to DCA to attend seminar, can you help me in booking?

ASSISTANT: Sure, please share me your trip dates.

USER: I am departing on Sep 03 and return on Sep 05.

ASSISTANT: Do you want to travel in connecting flight or direct flight?

USER: I need a flight with connection limit 1.

ASSISTANT: Please share if you want to travel in any specific time?

USER: I want to depart in morning.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am ok with any class.

ASSISTANT: Please wait for a while. We found a Delta airline and 1019 is flight number with a fare of 300.

USER: Sure, take your time. Please proceed for booking.

ASSISTANT: Your ticket is confirmed with an business class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.