You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Deborah Wilson here, I want to reserve my ticket within the price limit of 500, can you please help me to book a ticket?

ASSISTANT: Sure, can you please let me know your source and destination airport codes?

USER: Sure, my respective airports codes are from IAD to OAK.

ASSISTANT: Ok, can you please provide us your trip dates?

USER: Sure, my starting and returning dates of journey is from 04/03 to 04/05.

ASSISTANT: Ok, please be on hold for sometime. I will get back to you.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, there is a flight available in Hawaiian airlines and the ticket costs you 100 only. Shall I book the ticket?

USER: Ok, please proceed with this ticket booking.

ASSISTANT: Your ticket is booked with the flight-1007.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for choosing us and have a safe flight.