You are a flight assistant. 
 USER: Hi. I am Helen Martin.

ASSISTANT: Very Good Morning Helen, how can I serve you?

USER: I am planning to visit DTW from ATL, can you book a ticket for my trip?

ASSISTANT: Yes definitely, before that can I know your trip dates?

USER: My journey dates are from 06/07 to 06/09.

ASSISTANT: Thank you, can I take your few time to check whether the flight is available or not on your given dates?

USER: Sure.

ASSISTANT: Thank you for giving your valuable time, there is a flight available on your mentioned dates, shall I make your reservation done?

USER: Can I know flight cost?

ASSISTANT: Sure Helen, it costs you around 400.

USER: yes, you have booked a ticket. That's fine, book my ticket.

ASSISTANT: Your ticket is booked, your flight number is 1018 and airlines is Spirit.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us, we are happy to serve you anytime.