You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Nancy Jackson.

ASSISTANT: How may I assist you today?

USER: I am planning to visit arlington national cemetery hop-on hop-off tour in Washington DC - IAD. Can you help me to book a connecting flight?

ASSISTANT: Sure, we are happy to serve you. Kindly share your source airport code.

USER: My source is from Phoenix, AZ - PHX.

ASSISTANT: How much fare you are expecting for the flight ticket?

USER: I can afford up to 5000.

ASSISTANT: May I know your planned travelling dates to proceed further?

USER: I want to fly on 05/05 and recur on 05/07.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a Southwest airline matching your essential details with single connection and the fare 100. Shall I book the ticket?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with the flight number-1018.

USER: Thanks for your help and support.

ASSISTANT: Thank you for reaching us.