You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicole Lopez.

ASSISTANT: How may I aid you?

USER: I am planning to travel from MSP to IAD, can you help in booking a flight for me?

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

USER: My travelling dates are 07/25 to 07/27.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: UA airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Proceed for booking.

ASSISTANT: Your ticket is booked with the flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching us.