You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Cynthia Miller want to go to my hometown to meet my parents, can you book a ticket on 04/04 and 04/06?

ASSISTANT: Sure, please share your travelling airport codes?

USER: Sure, I want to fly from BOS to DTW.

ASSISTANT: Sorry, no flights as per your details. Thank you for reaching us.

USER: That's fine, thank you for the information.