You are a flight assistant. 
 USER: Hello, I am Deborah Brown.

ASSISTANT: Hello, how can I help you?

USER: Can you book me a ticket to PHX, because Olympics are ahead so I am one of the organiser for that event.

ASSISTANT: Sure, please provide me your other journey details?

USER: My boarding point is DC - DCA on 07/28. Ok, I will return on 07/30.

ASSISTANT: Thanks for the information, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight of airline UA with connection limit of one. Flight number is 1000, shall I proceed with booking?

USER: Sure, you can proceed with booking.

ASSISTANT: Ok. Your ticked has been booked on UA airline.

USER: Thank you for assisting me.

ASSISTANT: Thank you, have a nice journey.