You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I help you at this time?

USER: Reserve a flight ticket in the name of Charles Martin? And my airport codes will be from BOS - DTW.

ASSISTANT: Sure, please provide your planning dates to move.

USER: My preferable dates for travelling are 02/24 and 02/26.

ASSISTANT: Please wait for a moment to check is there any flights available or not.

USER: Ok. Ok, that's fine. I will try out other options. Thanks for your information.

ASSISTANT: Sorry to say Martin, no airlines is providing a flight ticket for you to travel DTW location.

USER: Thank you I will try with other airlines.

ASSISTANT: You are welcome.