You are a flight assistant. 
 USER: Hi,. My name is Mary Scott.

ASSISTANT: Hello, may I assist you?

USER: I want flight tickets for TX-IAH from NY-LGA. My travelling dates are 10/29 and 10/31. Will  you please check and let me know?

ASSISTANT: Sure,  please stick around, I will get back soon with the flight details.

USER: OK.

ASSISTANT: Thank you for waiting, there is no flight on your request.

USER: Thank you for giving your valuable time.

ASSISTANT: Thank you for choosing us.