You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I know which service you are expecting from our agency?

USER: Due to my health conditions, I want to change my recent reservation.Can you help me with that?

ASSISTANT: Sure, I can help you to modify the ticket details.

USER: Thank you.

ASSISTANT: I need some basic information to check your ticket status. May I know your good name please?

USER: Helen Thomas here.

ASSISTANT: I have successfully found your previous reservation. Can you please tell me on which dates you are willing to travel?

USER: My trip dates are 10/28 and 10/30.

ASSISTANT: Ok, how many number of connections do you prefer in between your journey?

USER: I need break in my journey.

ASSISTANT: Ok, which class type do you prefer?

USER: I am comfortable with any flights.

ASSISTANT: Ok, on which airlines you would like to travel?

USER: I am comfortable with any airlines.

ASSISTANT: Ok, please tell me your genesis and terminus airport codes.

USER: My airport codes are JFK-IAH.

ASSISTANT: Ok, please give me a minute. In the meanwhile, tell me your particular timings to depart and return?

USER: I am comfortable with any timings.

ASSISTANT: There is a flight in the Hawaiian airlines which is having a single connection limit with the ticket cost of 100. Shall I proceed to reserve an economy class ticket?

USER: Go ahead.

ASSISTANT: I have changed your ticket details and reserved a flight ticket with the flight-1012 which departs in the afternoon and returns in the evening time. Have a nice journey.

USER: Thank you.

ASSISTANT: You are most welcome. Thank you for reaching us.