You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Collins.

ASSISTANT: Can you tell me how should I assist you?

USER: I want to travel from CLT to JFK  for my brothers birthday, could you please book a ticket?

ASSISTANT: My know your travelling dates?

USER: My departure day is 03/31 and 04/02. Return day is 04/02.

ASSISTANT: Sorry to say no flight found on your details.

USER: Thank you for your help.

ASSISTANT: I wish your brother many more happy returns of the day in advance. Thank you for reaching us.