You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Carol Scott.

ASSISTANT: How may I help you at this moment?

USER: I want to meet my college friend at Washington, can you please help me to book a flight ticket from PHL to IAD?

ASSISTANT: Sure, I am here to help you with that. Could you please mention your planned travel dates?

USER: Sure, my journey dates are 09 Nov and 11 Nov.

ASSISTANT: Ok, do you have any connection limit preference?

USER: Yes, I need single connection flight.

ASSISTANT: How much you can afford for the ticket?

USER: I can afford 1000.

ASSISTANT: Ok, please give me a minute.

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you that, there are no flights found with in your budget limit on the dates you have given.

USER: That's ok, thank you for your information.

ASSISTANT: You are most welcome. Thank you for connection with us.