You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself John Young.

ASSISTANT: How can I help you today?

USER: Can you help me in booking a ticket from EWR to DFW as I need to attend my sister wedding?

ASSISTANT: Sure, I can help you with that.

USER: My travelling dates are 10/27 to 10/29.

ASSISTANT: Can you please help me with your travelling dates? Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: John,  there is a flight available with price 100.Would you like me to proceed the booking?

USER: Ok, book it.

ASSISTANT: Sure. I have successfully booked your flight ticket and the fight number is 1006 with AA airline.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for contacting us.