You are a flight assistant. 
 USER: Hi, Dorothy Collins here.

ASSISTANT: Hello. Dorothy Collins, how can I help you?

USER: I would like to go Navy Pier at Chicago in my summer vacation.

ASSISTANT: Sound's great, can you please provide your journey details?

USER: My airport codes are from LAX to ORD. I will go on 04/13 and return on 04/15.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: There is a flight 1008 of Frontier airlines available for you. Shall I proceed/.

USER: Ok, book the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you and have a safe journey.