You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patricia Campbell.

ASSISTANT: How can I assist you today?

USER: Please assist me to book an economy class ticket with single connection from Detroit to attend my nephew's baby shower in Chicago.

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: I intend to start on Aug 3rd and my return date will be on Aug 5th.

ASSISTANT: Fine, may I know your source and destination airport codes please?

USER: My boarding and landing airport codes are DTW and ORD.

ASSISTANT: Ok, please wait a while.

USER: Sure.

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

USER: Everything is fine, you can book the ticket with this airline.

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

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for choosing us.