You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Jeffrey Mitchell, can you help me to book a flight from IAD to ORD?

ASSISTANT: Ok, may I know your preferable dates?

USER: My travelling dates are 04/11 and 04/13.

ASSISTANT: Ok, wait a moment.

USER: Please search a connecting flight.

ASSISTANT: Thanks for your time, there is a connecting flight-1001.

USER: Procced.

ASSISTANT: Ok, ticket has been done with Delta airline.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight.