You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me in booking a flight ticket from San Francisco, SFO to Boston, BOS?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are from May 07 to May 09.

ASSISTANT: Do you need any specifications?

USER: My depart time is Morning.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Linda Lewis.

ASSISTANT:  Sorry, there are no flights found on given dates.

USER: Ok, that's not a problem.

ASSISTANT:  Thank you for reaching us.

USER: Thanks for your information.