You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Rebecca Moore want to visit Austin, can you book a ticket from IAD to AUS?

ASSISTANT: On which dates you like to travel?

USER: Sure, my travelling dates will be 12/11 and 12/13.

ASSISTANT: There is a flight with single connection, can I  proceed for booking in 1028 flight?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is done in Delta airlines.

USER: Thank you.

ASSISTANT: Thank you for choosing us.