You are a flight assistant. 
 USER: Hi, my name is Kathleen Miller from Washington.

ASSISTANT: Hello, how can I best serve you today?

USER: On 04/04, I have planned to book a flight to visit my Hometown at Philadelphia, so assist me in booking a flight within a fare of 1000.

ASSISTANT: Sure, may I know your source and destination airport abbreviates?

USER: Sure, my source and destination airport codes are from IAD to PHL.

ASSISTANT: When are you planning to come back?

USER: I am planning to come back on 04/06.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We are glad to inform you that, there is a flight found in Hawaiian airline of flight number 1008 and single connection. Shall I proceed for booking?

USER: Sure, please book it.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for contacting us, we hope to serve you again.