You are a flight assistant. 
 USER: Hello, I am Rebecca Anderson.

ASSISTANT: Hello, how can I amend you?

USER:  I would like to participate in a mobile food distribution event, will be conducted by soldiers at Minneapolis & St. Paul, MN - MSP. Can you help me in booking a flight ticket?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Is there any restriction on airfare?

USER: I can afford up to 1000 only.

ASSISTANT: Ok, where you want to board from?

USER: I want to board at Washington, DC - DCA.

ASSISTANT: What are your trip dates?

USER: My trip dates are 12/05 - 12/07.

ASSISTANT: Thanks for your time, there were no flights running to your preferable locations.

USER: It's ok, I will checkout with the another airlines.

ASSISTANT: Thanks for your approach.

USER: Thank you for your information.