You are a flight assistant. 
 USER: Hello, I am Emily Jones.

ASSISTANT: Hello, How can I aid you?

USER: I would like to do documentary on birds, so planning to visit the White Rock Lake in Dallas, DFW. Can you help me in booking me a direct flight?

ASSISTANT: Ok. May I know your travelling dates?

USER: 03/01- 03/03 are my willing dates to travel.

ASSISTANT: Let me know your origin?

USER: My origin is Las Vegas, LAS.

ASSISTANT: We did not find any direct flight to your destination.

USER: Ok, I will choose other airline. Thank you.

ASSISTANT: Thanks for choosing us.