You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help 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, can you specify your travel source and destination?

USER: My airport codes are SEA-DCA.

ASSISTANT: What are your travel dates?

USER: My trip dates are Nov 12th and Nov 14th.

ASSISTANT: Do you need any connections?

USER: I need break in my journey.

ASSISTANT: Ok, are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Stephen Perez here.

ASSISTANT: Connecting flight number 1029 with price 100 in economy class is available. Is it ok for you?

USER: Please carry on.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.