You are a flight assistant. 
 USER: Hello. I am Pamela Green.

ASSISTANT: Hello, how may I assist you today?

USER:  I would like to reach Los Angeles to attend a board meeting on 07/11 and I intend to return on 07/13, can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your budget?

USER: My journey budget is 1000.

ASSISTANT: Ok, please share your travelling airport codes.

USER: My source code is from Washington, DC - IAD and destination code is Los Angeles, CA - LAX.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time,we found a flight in 1007 Delta airline with a fare of 100.

USER: Please proceed to book.

ASSISTANT: Sure, your booking has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.