You are a flight assistant. 
 USER: Hi. I am Christine Rodriguez.

ASSISTANT: Hello Christine, how may I reach out to you?

USER: I planned a conduct science expo with students of my college on 01/26, so I need to go there on 10/24. Can you help me in booking?

ASSISTANT: Sure, how much can you afford for the ticket?

USER: I can afford up to 200.

ASSISTANT: Ok, may I know your journey points to proceed?

USER: I will fly from JFK and land at HOU.

ASSISTANT: Thanks for your details. It's unfortunate that there are no flights available on your requested dates.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for picking us.