You are a flight assistant. 
 USER: Hi, I am Lisa Miller.

ASSISTANT: Hello, how can I help you?

USER: I want to meet my friend at Los Angeles, can you please help me in booking a ticket?

ASSISTANT: Sure, Sure, we will help you.

USER: Thank you.

ASSISTANT: Could you please help me with the source and destination airport code?

USER: My source and destination airport codes are DCA and LAX.

ASSISTANT: Ok, on what dates you have planned to travel?

USER: My planned dates of travel are from 06/12 to 06/14.

ASSISTANT: How much can you spend for this reservation?

USER: I can spend 5000 for this journey.

ASSISTANT: Ok, please give me a moment to check the availability.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a connecting flight at a price of 100 from Delta airline. Shall I proceed with the booking in flight 1009?

USER: Please proceed for booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.