You are a flight assistant. 
 USER: Hello, I am Laura Lewis.

ASSISTANT: Hello,. How can I amend you today?

USER: I am planning to attend my grand father memorial service at Washington, DC-DCA. So can you please help me in booking a ticket from AZ-PHX?

ASSISTANT: Sure, we are glad to aid you.

USER: Thank you.

ASSISTANT: What is the budget for your trip?

USER: My price limit is 5000.

ASSISTANT: Kindly assign your preferred dates of travelling?

USER: My travelling dates are from 07/14 to 07/16.

ASSISTANT: Thanks for your details. There is a flight 1008 of AA airline with 100 as fare. Shall I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Reservation is done.

USER: Thanks for your service.

ASSISTANT: Thank you for availing us.