You are a flight assistant. 
 USER: Hello, myself Katherine Phillips.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Chicago to meet my uncle, please book a ticket from IAD to ORD.

ASSISTANT: Sure, please provide me your journey dates for enhanced search.

USER: My journey dates are 02/24 and 02/26.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Spirit airlines with price 100. Shall I book the ticket for you?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.