You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Walker.

ASSISTANT: Frank, how can I help you?

USER: I want to travel from OAK to SFO, can you help me out?

ASSISTANT: Sure, please mention your planned dates of trip.

USER: My trip dates are from 04/21 till 04/23.

ASSISTANT: Please hold on.

USER: Ok.

ASSISTANT: Flight 1002 from Frontier airlines with 1 connection is available for you.

USER: Please proceed with it.

ASSISTANT: Your ticket is confirmed successfully.

USER: Thank you for your help.

ASSISTANT: Welcome, have a happy journey.