You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me to book a ticket from BOS to SFO?

ASSISTANT: Sure, may I know your name please?

USER: Betty Hall here.

ASSISTANT: Please let me know your planned travelling dates.

USER: My travelling dates will be on Feb 6 to Feb 8.

ASSISTANT: Kindly share your connection preference.

USER: I am comfortable with any flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: Ok, not an issue.

ASSISTANT: Thank you for availing us.

USER: Thank you.