You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name?

USER: My name is Frank Collins.

ASSISTANT: How may I be of your assistance?

USER: To complete a story of my upcoming film, I need to book a flight ticket from Washington. Can you help me with that?

ASSISTANT: Sure, I'll help you in booking. Do you have any price restrictions?

USER: The flight ticket should be within the price of 1000.

ASSISTANT: To check the availability of flights I need to know your preferable travelling dates, can you provide it?

USER: Sure, I am planning to start on 05/02 and return on 05/04.

ASSISTANT: Is there any connection preference in between your journey?

USER: Yes, I do need a connection in my journey.

ASSISTANT: Could you please let me know your boarding and landing points?

USER: I would like to reach PHX from IAD.

ASSISTANT: Thanks for providing information, please wait a while I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a direct flight with your requested details. Shall I book the ticket with direct flight?

USER: No, I need a connecting flight. Can you please recheck?

ASSISTANT: Unfortunately there is no connecting flights found.

USER: Ok, thank you for your assistance.

ASSISTANT: Pleasure to serve you, have a nice day.