You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Helen Harris here, I want to reserve my ticket from EWR to DTW, can you please help me?

ASSISTANT: Sure, I am here to help you. Please provide your itinerary dates.

USER: Sure, my preferable dates of journey is from 09/09 to 09/11.

ASSISTANT: Please hold on for a while.

USER: Sure, but please make sure that the price limit is 500.

ASSISTANT: Delta airlines with flight 1017 is providing service with 1 connection and ticket costs you 100.

USER: Ok, you can book it.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.