You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: I am Sandra Jackson. I want to make my flight reservation from IAH to BOS. Can you please help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER:  My travelling dates are Mar 29 and Mar 31.

ASSISTANT: Do you have any class preference?

USER:     No, I am ok with any class.

ASSISTANT: Ok, please allow me a moment.

USER: Ok, make sure my return time should be morning.

ASSISTANT: The business class with flight number 1003 of Frontier airline is available having fare as 800 and connection as 1, is it ok for you?

USER: Yes, please book a ticket for me.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a great day.