You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am John Evans.

ASSISTANT: How may I aid you at this moment?

USER: Will you please book a flight ticket to Charlotte, CLT?

ASSISTANT: Sure, may I know your lay by's limit?

USER: It's a single connection.

ASSISTANT: Sure, may I know your travelling dates?

USER: 11/08-11/10 are the trip dates.

ASSISTANT: Ok, what is your source airport code?

USER: Houston, IAH is the source to meet my mom.

ASSISTANT: We found a UA airline with fare of 200 matches your schedule.

USER: Ok, You can proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1005.

USER: Thank you.

ASSISTANT: Thank you for reaching us.