You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Ruth Evans here, I would like to travel from ORD to DCA, can you please help me to book a ticket?

ASSISTANT: Sure, what are your willing dates to travel?

USER: Ok, my dates of journey is from 12/22 to 12/24.

ASSISTANT: Ok, please wait a moment I will check for best services on your route.

USER: Sure, take your time.

ASSISTANT: Ok, there is a flight 1019 in UA airline matching your dates with price 100. Shall I proceed?

USER: Ok, please proceed with this ticket.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice journey.