You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Elizabeth Rodriguez. I want to book a flight ticket to MA-BOS from CO-DEN, can you help me out?

ASSISTANT: Ok, please help me with your travelling dates?

USER: Sure, my journey dates are 07/05 and 07/07.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, there is no flight found.

USER: OK, no problem. Thank you.

ASSISTANT: Thanks for connecting us.