You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Stephanie Carter here. I want to change my recent reservation, can you help me in doing that?

ASSISTANT: Sure, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: We found a reservation on your good name. May I know your planned travel dates?

USER: My trip dates are Sep 09 to 11.

ASSISTANT: Please share me your source and destination codes.

USER: My airport codes are OAK to SFO.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any specifications?

USER: My depart and return time must be in morning.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Spirit, flight number: 1012 and price is 100 with one connection.

USER: Ok, please proceed with booking.

ASSISTANT: Your flight ticket has been reserved. Your depart and return time is 3:00AM.

USER: Thank you.

ASSISTANT: Thank you for reaching us.