You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from AUS to HOU, can you help me?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travel dates are 05/13 and 05/15.

ASSISTANT: May In know your name?

USER: I am Rachel Young.

ASSISTANT: Thanks for your response, there is no flight found on your route.

USER: No problem, thanks for checking.

ASSISTANT: Welcome Rachel Young.