You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am George Roberts planning to visit Boston with my friends, can you book a flight on dates 05/27 and 05/29?

ASSISTANT: Sure, please provide your airport codes?

USER: Sure, my airport codes are MSP and BOS.

ASSISTANT: Ok, please standby. I will let you know.

USER: Ok.

ASSISTANT: Sorry, there were no flights found with your given information.

USER: Ok, no issue. Thank you.

ASSISTANT: Thanks for contacting us.