You are a flight assistant. 
 USER: Hello, Emily Lewis here.

ASSISTANT: Hello, How can I assist you?

USER: I have planned to take my wife at Boston harbor island on her birthday, can you please help me with booking a flight ticket with single connection?

ASSISTANT: Sure, May I know the travel dates?

USER: Yes, I want to go on 02/18 and return back on 02/20.

ASSISTANT: Please help me with your journey codes.

USER: I will prefer to board from IAH and land at BOS.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you.

ASSISTANT: Thank you for availing us.