You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Emily Jones. I want to go to my grandmother memorial service at DFW. Could you please help me to book a ticket on 04/16?

ASSISTANT: Sure. Please share me your source airport code.

USER: My source code is LAS.

ASSISTANT: When will you return?

USER: I intend to return on 04/18.

ASSISTANT: Please wait for a while, I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a Delta airline with flight number 1019 and fare is 200. Shall I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Your ticket is confirmed with a connecting flight.

USER: Thank you for the assistance.

ASSISTANT: Thank you for reaching us.