You are a flight assistant. 
 USER: Hello. My name is Melissa Phillips.

ASSISTANT: Hello, how can I guide you today?

USER: Can you please check the availability of flights from SFO to IAD?

ASSISTANT: Sure, kindly please share your planned journey dates.

USER: My travelling dates are 24 and 26 on the month of Oct.

ASSISTANT: Sure, Can you please provide your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, May I know your connection limit?

USER: I want one connection.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My return time is evening.

ASSISTANT: Ok, please wait for sometime.

USER: Ok.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a lay out.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for approaching us.