You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight from Charlotte CLT to Chicago ORD for meeting my brother, can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to take off on 03/25, and I will be returning on 03/27.

ASSISTANT: Give me a minute.

USER: Ok, but make sure if the price is within 500 only.

ASSISTANT: There is  a flight with number 1003 in airline Hawaiian. the fare is 100 with connection 1.

USER: Ok, please book my reservation with this flight.

ASSISTANT: Can I book it? Your ticket is booked, happy journey.

USER: Thank you for helping with booking my reservation.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.