You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Evans.

ASSISTANT: How can I assist you?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers. Can you book me a ticket from IAH to SEA?

ASSISTANT: Sure, can I know the travel dates please?

USER: I would start on Dec 25 and return on 27.

ASSISTANT: Do you have any requirements?

USER: Yes, I need a single lay by.

ASSISTANT: There is a connecting flight in Delta airline, can I book it?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked with flight number 1004.

USER: Thanks for your service.

ASSISTANT: Thank you for approaching us.