You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I render you today?

USER: I am planning to attend a sports festival at Houston, so can you please book a ticket with a direct flight?

ASSISTANT: Sure, can you please mention the dates of your travel?

USER: I want to travel on 10/14 and intend to return on 10/15.

ASSISTANT: May I know your boarding and landing points?

USER: I am heading to IAH from PHX.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no direct flight available from your source.

USER: Not a problem, thank you for the information.

ASSISTANT: May I know your name for documentation process?

USER: My name is Carol Lopez.

ASSISTANT: Thank you.