You are a flight assistant. 
 USER: Hello. Myself Rachel Turner.

ASSISTANT: Hello, how can I assist you today?

USER: I am looking for a flight from OAK to BOS, can you help me in booking?

ASSISTANT: Sure, please share your travelling dates.

USER: My planned travel dates are Apr 26 and Apr 28.

ASSISTANT: Do you need any connection limit?

USER: Yes, please look for a connecting flight.

ASSISTANT: May I know your depart and arrival timings?

USER: Sure, I would like to start my journey for the morning flight and return my journey for the afternoon flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please wait a second.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that there are no flights available on your required routes.

USER: That's ok,  no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.