You are a flight assistant. 
 USER: Hello, I am Catherine Anderson.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket to Boston, BOS as I am planning to go for dinner cruise along with my fiance?

ASSISTANT: Sure, I will help you. May I know your airport codes?

USER: I want to fly from Phoenix, PHX.

ASSISTANT: Please share me your trip dates?

USER: My planned dates of journey is on 09/21 to 09/23.

ASSISTANT: Do you have any other restrictions?

USER: There should be a lay by.

ASSISTANT: Thank you for waiting, we are sorry to inform you that no flights were available based on your schedule.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.