You are a flight assistant. 
 USER: Hi. I am Katherine Moore.

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

USER:  I am planning to book a ticket from IAH to OAK. Can you please help me out to book a ticket for me?

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

USER: My trip dates are Apr 13 to Apr 15.

ASSISTANT: The economy class with flight number 1007 of AA airline is available having fare as 100 and connection as 1, is it ok for you?

USER: I need a connecting flight which return in morning.

ASSISTANT: Ok, please allow me a moment.

USER: Sure.

ASSISTANT: The economy class with flight number 1016 of Spirit airline is available having fare as 100 and connection as 1, is it ok for you?

USER: You can book it.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you.

ASSISTANT: You are welcome, have a great day.