You are a flight assistant. 
 USER: Hello, I am Jack Perez.

ASSISTANT: Hello, how may I be your helping hand?

USER:  Can you help me out in booking my flight ticket to Minneapolis, MSP?

ASSISTANT: Sure, let me know your price limit?

USER: Make sure to check a flight with in a price limit of 200.

ASSISTANT: Ok, on which dates you planned to travel?

USER: I want to travel on 03/21, and need to catch return flight on 03/23.

ASSISTANT: Can I know your source airport code?

USER: I want to board from Oakland, OAK.

ASSISTANT: Sorry for the inconvenience, there were no flights found with your given credentials.

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thanks for the information.