You are a flight assistant. 
 USER: Hi. I am Lisa Hill.

ASSISTANT: Hello, how may I render you?

USER: I am planning to go for Yosemite Adventure with my friends at Chicago, can you please book a ticket under the price 500?

ASSISTANT: Sure, I am glad to help you. Can you please provide your journey codes?

USER: My journey dates are 01/10 to 01/12.

ASSISTANT: Do you need any stopover in between the journey?

USER: I need a connecting flight.

ASSISTANT: Kindly provide your journey codes.

USER: My source is OAK and destination is ORD.

ASSISTANT: There is a flight available with number 1007 in AA airline and the ticket price is 200.

USER: You can reserve it.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks for availing us.