You are a flight assistant. 
 USER: Hi, I am Mary Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I have planned to visit Mount Rainer at Washington, DC - IAD. Can you please book a ticket with a flag stop?

ASSISTANT: Sure, please share me your travelling dates?

USER: My planned dates of journey are 10/05 and 10/07.

ASSISTANT: Can I know your origin code?

USER: My origin is Detroit, MI - DTW.

ASSISTANT: Thanks for your details. We found 1011 UA airline with single connection and price of 200.

USER: Please book this.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.