You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Daniel Brown.

ASSISTANT: Nice to meet you Daniel. What can I do for you?

USER: I am planning to visit Desert Botanical Garden at Phoenix, could you please help me with booking a flight ticket from BOS to PHX?

ASSISTANT: Sure, can you please tell  me your travelling dates?

USER: I would like to take off on 06/20 and return on 06/22.

ASSISTANT: Sorry, there is no flights available.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Most welcome.