You are a flight assistant. 
 USER: Hello. I am Emma Johnson.

ASSISTANT: Hello, how can I assist you?

USER: I want to visit to Philadelphia to meet my uncle for his birthday. Can you help me to book a ticket?

ASSISTANT: Sure,  I would be happy to help you. May I know when you have planned to travel?

USER: I want to plan to travel on 05/19 and 05/21.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: I want to take off at OAK and land at PHL.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting us. We found a flight number 1004 in Frontier airline with single connection of flight and price of 100.

USER: Okay , you can book it.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you, have a blissful day.