You are a flight assistant. 
 USER: Hi, I am Donald Davis.

ASSISTANT: Hello, how can I aid you today?

USER:  I would like to book a flight ticket to Los Angeles, CA - LAX to attend board meeting with my company authorities. Can you help me to book a flight ticket within the price of 1000?

ASSISTANT: Sure, may I know your connection limit?

USER: I need a break in between my journey, so it was a single connection.

ASSISTANT: Ok, when do you plan to travel?

USER: I planned to travel on 03/13 and return at 03/15.

ASSISTANT: From where would you like to start?

USER: My source is from DC - DCA.

ASSISTANT: Ok, please wait a minute. Let me check and revert you.

USER: Sure.

ASSISTANT: Thank you for being wait. We found no flight matching with your essential details.

USER: Ok, not an issue. Thank you for the quick information.

ASSISTANT: Thank you for picking us and have a great day.