You are a flight assistant. 
 USER: Hello, I am Eric Thomas.

ASSISTANT: Hello, how can I help you today?

USER: As I am a doctor, I want to conduct a free medical camp at Dallas, DFW to serve for the people. Could help me in booking me a direct flight?

ASSISTANT: Sure, kindly mention your travel dates?

USER: 10/25 - 10/27 are my willing dates to travel.

ASSISTANT: May I know your airport code?

USER: My airport of boarding New York, LGA.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flight found with your requirement.

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

ASSISTANT: Thanks for reaching us.