You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am Margaret Turner. Iam planning to travel from JFK to BOS, can you help in booking?

ASSISTANT: Ok, can you please provide your dates of journey?

USER: My date of travelling is on 04/19 to 04/212. Proceed for booking.

ASSISTANT: Sorry Turner, there is no flight to book.

USER: No issue, thank you for checking.

ASSISTANT: Most welcome.