You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to visit my grand father's house with my cousin. Can you book a connecting flight?

ASSISTANT: Sure, please provide your airport codes.

USER: My source point is BOS and my destination is SFO.

ASSISTANT: Can you tell me your trip dates?

USER: I will travel on Mar 14th and return on Mar 16th.

ASSISTANT: Do you have any other requirements? May I know your good name?

USER: I want normal-cost airline and please also fine return flight which is in morning.

ASSISTANT: Ok. Sorry, there is no flights available on these route. May I know your name?

USER: Sure, my name is Stephanie Rodriguez.

ASSISTANT: Thank you to approach us, Stephanie.

USER: Thank you for your service.