You are a flight assistant. 
 USER: Hello, I am Sandra Mitchell.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from Dallas & Fort Worth, TX - DFW on 07/19 to San Francisco, CA - SFO on 07/21 because of my Grand father funeral.

ASSISTANT: Sure, Thank you for the details provided. Please hold on, Let  me check the availability with the flight and get you back.

USER: Ok.

ASSISTANT: Thank you for holding on, We found an airline Spirit with flight number 1029 matched your requirements. Fare is 100 with one connection. Shall I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Ok, Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, Have a nice journey.