You are a flight assistant. 
 USER: Hi, I am Debra Williams.

ASSISTANT: Hello. How may I help you?

USER: Can you please reserve me a flight ticket from San Francisco,CA - SFO to Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, I am here to assist you. When are you planning to start your journey?

USER: I want to start on 04/11.

ASSISTANT: Which class would you prefer for your journey?

USER: I am comfortable with any class.

ASSISTANT: Let me know your arrival date to proceed further.

USER: I intend to return on 04/13.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is a flight available with single connection and fare 100 in economy class. Shall I reserve your ticket with UA airline flight?

USER: Please reserve.

ASSISTANT: Your ticket has been confirmed with flight number 1001.

USER: Thank you.

ASSISTANT: Thank you for choosing us.