You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Help me in booking a flight from IAH to DTW?

ASSISTANT: Can I know your journey dates?

USER: I like to travel on Feb 28 to Mar 01.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other requirement?

USER: I want to depart in evening.

ASSISTANT: May I know your name?

USER: I am Christopher Hall.

ASSISTANT: Connecting flight can be booked with United airlines for price 100. Shall I book a ticket?

USER: Proceed for booking.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Ticket is booked having flight number 1029 which departs at 2:00 hours and arrives at 9:00 hours. Thanks.