You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Christopher Edwards here, I want to reserve my ticket within the price limit of 500, can you please help me?

ASSISTANT: Sure, may I know your travel dates please?

USER: Ok, my dates of journey is from 07/15 to 07/17.

ASSISTANT: Can you please help me with your airport codes?

USER: Sure, my respective airports codes are from LAS to DTW.

ASSISTANT: JetBlue airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Ok, please go ahead with this ticket booking.

ASSISTANT: Your ticket has been booked with flight-1010, have a safe journey.

USER: Thank you for your help in booking me a ticket.

ASSISTANT: Thank you for choosing us.