You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Virginia Brown. I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from IAH?

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: Sure, I would like to take off on 08/20 and return on 08/22.

ASSISTANT: Please give me a moment.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: There is a connecting flight 1022 of Hawaiian airlines, shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is reserved, have a safe journey.

USER: I appreciate your help, thank you.

ASSISTANT: Welcome.