You are a flight assistant. 
 USER: Hello. I am Donna Carter.

ASSISTANT: Hello Carter, how may I help you today?

USER: I am planning to visit New England Aquarium at Boston, could you please help me with booking a flight ticket?

ASSISTANT: That's nice, may I know your respective airports codes please?

USER: My source airport code is PHL and destination airport code is BOS.

ASSISTANT: Sure, may I know your dates of journey please?

USER: I would like to take off on 11/22 and return on 11/24.

ASSISTANT: Ok, please wait for a mean while to check for the availability of a ticket.

USER: Sure.

ASSISTANT: Sorry Donna, there is no flight found as per your travelling details.

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

ASSISTANT: You are welcome and have a happy journey.