You are a flight assistant. 
 USER: Hi, I am Betty Williams.

ASSISTANT: Hello, How can I aid you the day?

USER: I want to attend Darlington national cemetery hop-on hop-off tour at Washington DC - IAD. Can you help me to book a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: My source is at Detroit, MI - DTW.

ASSISTANT: Is there any price restriction?

USER: I can afford up to 5000.

ASSISTANT: May I know your travel dates?

USER: I want to fly on 08/18 and 08/20.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: We found a Frontier airline, with flight number 1014. The airfare is 1000, with single halt.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help and support.

ASSISTANT: Thanks for your interest on us.