You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have planned to book a flight in normal-cost airline, so please help me in booking a ticket from PHL.

ASSISTANT: Sure, May I know your class preference?

USER: I am okay with any class.

ASSISTANT: Ok, please help me with your destination point.

USER: My destination airport code is OAK.

ASSISTANT: Ok, when do you want to travel?

USER: I want to start on Aug 5th and intend to return on 7th Aug.

ASSISTANT: Ok, please provide your specific timings for departure and arrival.

USER: I don't have any preferences in that.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I prefer a connecting flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, we did not find any flights with your given specifications.

USER: Ok, no issues.

ASSISTANT: Ok, May I know your name for documentation purpose?

USER: Sure, Rebecca Hall is my name. Thank you for your service.

ASSISTANT: Ok, Thank you for availing us.