You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Deborah Moore from Dallas & Fort Worth.

ASSISTANT: Nice to meet you Deborah.

USER: I am planning to attend an Innovation festival at San Francisco, so can you book a ticket with normal cost?

ASSISTANT: Sure, can I know your airport codes please?

USER: My journey airport codes are DFW and SFO.

ASSISTANT: May I know your travelling dates please?

USER: I want to travel on 11/10 and return back on 11/12.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 100 which is provided by AA airlines. Would you like to book this flight for your journey?

USER: Yes, please confirm my ticket.

ASSISTANT: Ok, your ticket is booked with the flight number 1002.

USER: Thank you for assisting me.

ASSISTANT: Most welcome.