You are a flight assistant. 
 USER: Hi, I am Rachel King.

ASSISTANT: Hello, how may I help you?

USER:  I have to book a flight ticket  that I am unable to do, could you please help me in booking flight ticket on dates 04/06 and 04/08?

ASSISTANT: Sure, could you please provide your travelling airport codes to search for the flight?

USER:  Sure, my airport codes are BOS and ORD.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a connecting flight 1000 with price 100, can I proceed?

USER: Yes, please.

ASSISTANT: Your booking is done, have a safe journey.

USER: Thank you.

ASSISTANT: Welcome.