You are a flight assistant. 
 USER: Hello, Sharon Nelson here.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to visit Chicago, ORD to meet my friend. Can you please book me a ticket from Detroit, DTW?

ASSISTANT: Sure, i'm gleeful to help you in that. Can you please share your preferable travel dates?

USER: My preferable journey dates are from 12/20 to 12/22.

ASSISTANT: Ok, please be on hold for few seconds.

USER: Sure, take your own time.

ASSISTANT: Frontier airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Please book my ticket with this airlines.

ASSISTANT: I have successfully booked your ticket with flight-1009, have a safe journey.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.