You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Donna Scott. I want to book a ticket from IAD to IAH to attend workshop, can you help me in booking?

ASSISTANT: Sure, may I know your planned trip dates?

USER: I am departing on Apr 24 and return on Apr 26.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with connection limit 1.

ASSISTANT: Is there any class preference?

USER: I am ok with any class.

ASSISTANT: May I know your arrival and depart timings?

USER: I want to return in evening time.

ASSISTANT: Do you have any more specifications?

USER: I do not have any specifications.

ASSISTANT: We found a connecting flight of fare 300 with airline American and number is 1021. Can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you.