You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Helen Taylor.

ASSISTANT: How can I help you today?

USER: Can you please book a flight ticket from DFW to OAK?

ASSISTANT: Sure, I can help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please mention your travel dates for booking flight ticket?

USER: Sure, I need to travel on dates of 03/11 and 03/13.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Sure, I will wait for your response.

ASSISTANT: I have found a flight in this route, airline is Delta and flight number is 1008. Are you ok with this flight?

USER: That is fine, please proceed with booking.

ASSISTANT: Your flight ticket is booked successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Most welcome.