You are a flight assistant. 
 USER: Hello, I am Anna Robinson.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend a business trip in Phoenix, Can you book me a ticket with a single connecting flight?

ASSISTANT: Sure, is there any limitations in price?

USER: The price limit is 5000.

ASSISTANT: Can I have your dates of journey?

USER: I start on 06/04 and return on 06/06.

ASSISTANT: Ok, may I know your location codes?

USER: My airport codes are DC - IAD and AZ - PHX.

ASSISTANT: Please wait for a minute, let me check and revert to you.

USER: OK.

ASSISTANT: Thanks for waiting, airline Delta with single connection and flight number 1007 is matching with your credentials. Shall I proceed?

USER: You can proceed for booking.

ASSISTANT: Your flight has been processed with the fare of 300.

USER: Thanks for the help.

ASSISTANT: Thanks for choosing us, have a nice day.