You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I am Timothy Thomas. Can you please book a flight ticket with normal cost airlines?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your source point and destination point?

USER: My airport codes are, IAD to DTW.

ASSISTANT: Let me know when you are willing to travel?

USER: My journey dates are on Sep 7th and 9th.

ASSISTANT: Ok, wait for some time.

USER: I prefer business class. And return time should be in the morning.

ASSISTANT: We found Spirit airline with connecting flight and number 1004 fare of 100, Shall I proceed for booking?

USER: May I know the class and return time?

ASSISTANT: We found a economy class.

USER: Do not proceed. Thank you for your information.

ASSISTANT: Ok, Thanks for approaching us.