You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Katherine Parker here.

ASSISTANT: What can I do for you today?

USER: can you please help me in booking the ticket from DCA to DFW? As I'm planning to attend a seminar.

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: Sure, my departure date is 02/15 and return date is 02/17.

ASSISTANT: We found a Hawaiian airline with fare of 100 matches your schedule.

USER: That's fine, please proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1005.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.