You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER:  I have to baby sit my sister's children as she is not well. Can you please book a flight from IAD to ORD?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I will stay there for two days from 09/10 to 09/12.

ASSISTANT: Let me know your name.

USER: My name is Paul Mitchell.

ASSISTANT: There is a flight found with number 1007 in Southwest airline and the ticket price is 100. Shall I proceed?

USER: It looks good to me. Please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thanks for choosing us.