You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: As I am a scientist, I want to attend science festival with my students at Washington. Can you do the reservation?

ASSISTANT: OK. Please share me your travel dates.

USER: My journey dates are 01/26 and 01/28.

ASSISTANT: May I know your airport codes? Do you have any preferences?

USER: My airport codes are DFW-IAD. I need break in my journey and return time should be evening.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Scott Walker here.

ASSISTANT: Flight-1014 is available in Hawaiian airlines with single connection and the ticket fare is 100. Can I proceed?

USER: Go ahead.

ASSISTANT: Your booking is confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us.