You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Sarah Campbell here, I want to reserve my ticket from IAD to MSP, can you please help me?

ASSISTANT: Sure,I am here to help you out. May I know your travelling dates please?

USER: Sure, my planned dates of journey are from 08/21 to 08/23.

ASSISTANT: How much you can afford for airfare?

USER: I can afford up to 500 for this ticket.

ASSISTANT: JetBlue airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: Ok, please book it.

ASSISTANT: Your ticket is booked with the flight-1005.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for reaching us.