You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Debra Wright, planning to visit Washington. can you please book me a ticket from PHL to IAD?

ASSISTANT: Ok, please provide your planned dates of journey.

USER: My preferable journey dates are from 09/22 to 09/24.

ASSISTANT: I have found a flight with a single connection flight which costs 100. Shall I proceed?

USER: Please book my ticket with this flight.

ASSISTANT: Your flight ticket has been confirmed with flight 1013.

USER: Thank you for booking my ticket.

ASSISTANT: Most welcome.